Holy Innocents’ Day (28 December)

 Other  Comments Off on Holy Innocents’ Day (28 December)
Dec 272013
 

Among the many interesting facets of Mexico’s cultural geography are the subtle differences between beliefs in Mexico and similar beliefs in the USA and Canada. For example, 28 December, Day of the Holy Innocents ( Día de los Santos Inocentes) is the Mexican equivalent of north-of-the-border April Fools’ Day (1 April).

This is when Mexican children will borrow, but not repay, small loans from unsuspecting friends and relatives that they consider a soft touch. Once they’ve received the loan, they say either the following verse (quoted in Frances Toor, A Treasury of Mexican Folkways, 1947) or something similar:

Inocente Palomita
Que te dejaste engañar
Sabiendo que en este día
Nada se debe prestar.

Innocent little dove
You have let yourself be fooled
Knowing that on this day
You should lend nothing

So, be careful on 28 December if anyone admires one of your prized possessions… especially if it is your only copy of Geo-Mexico: the geography and dynamics of modern Mexico!

Related post:

The transformation of Real de Catorce from ghost town to film set and Magic Town

 Other  Comments Off on The transformation of Real de Catorce from ghost town to film set and Magic Town
Dec 262013
 

Both the name and the coat-of-arms of the state of San Luis Potosi recall the tremendous importance of mining to Mexico’s economy.

SLP-coat-of-armsCalled Potosí in emulation of the mines of that name high in the Bolivian Andes, the city’s coat-of-arms, awarded in 1656, has its patron saint standing atop a hill in which are three mine shafts. Left of the hill are two gold ingots, and right of it, two silver ones.

Some of the early mining towns in San Luis Potosí faded into obscurity, others became centers for ranching and commerce. The best known former mining town, Real de Catorce, for long considered a ghost town, has been resuscitated by tourism.

For visitors planning to see Real de Catorce, the best place to stay the night before is Matehuala, on highway 57, which has a full range of tourist services. From Matehuala, it is short distance west to Cedral. Shortly after Cedral a 24-kilometer-long cobblestone road climbs up the mountain to Real de Catorce, which sits at an elevation of  2,743 meters (9,000 ft) in the Sierra de Catorce range.

Real de Catorce

Main street of Real de Catorce. Credit: Tony

Main street of Real de Catorce. Credit: Tony Burton

The first surprise for visitors is the single file 2,300 meter long Ogarrio tunnel – the only entrance to the town from the north – a unique introduction to the many strange things awaiting you on the other side. The second surprise  is how such a large place, which produced more than 3 million dollars worth of silver each year, could ever have become a ghost town. Between 1788 and 1806, the La Purisima mine alone yielded annually more than $200,000 pesos of silver– and that was when a peso of silver was equivalent to a dollar.

The large, stone houses, often of several stories, with tiled roofs, wooden window frames and wrought-iron work, were so well built that they have survived to tell you their tales as you wander through the steep streets, soaking up the atmosphere of one of Mexico’s most curious places.

You need time to really appreciate the former grandeur of Real de Catorce. Fortunately, there are several simple hotels and restaurants. It is well worth hiring a local guide.  An enthusiastic guide will wear your feet out long before you tire of their informative commentaries.

Seek out the beautifully restored palenque (cock-fighting pit). Pause in the church to examine the mesquite floor, imaginatively described in some guidebooks as comprised of a mosaic of coffin lids. The church is dedicated to Saint Francis of Assisi. The two week long fiesta in his honor, centered on October 4th, is a huge affair, attended by hundreds of returning Real de Catorce families.

In front of the church, across the small plaza of Carbón, is the former mint. This gorgeous building is well worth visiting and now used for cultural events such as photographic exhibitions. Look in the gallery and perhaps you’ll find an irresistible, original, handcrafted item made of locally mined silver.

The town of Real de Catorce and its surroundings are sufficiently photogenic that several movies have been filmed here, including Bandidas (featuring Salma Hayek and Penélope Cruz) and The Mexican (featuring Brad Pitt and Julia Roberts).

The town, designated a Magic Town in 2001, has several small hotels and restaurants for those wanting to spend more time here.

This area has close associations with the indigenous Huichol (Wixarika) Indians who call this area Wirikuta. Each spring, they visit Cerro del Quemado, a hill within easy hiking distance of Real de Catorce, to leave religious offerings. The Huichol collect the hallucinogenic cactus peyote, used in some of their ceremonies, from the surrounding desert during an annual spiritual pilgrimage to Wirikuta from their heartland in northern Jalisco, 400 km (250) miles away. Cerro del Quemado was declared a National Sacred Site in 2011. An upcoming full length documentary about the Huichol Indians, the “Huicholes: The Last Peyote Guardians“, includes shots of the pilgrimage, while looking at how the continuation of the pilgrimages could be threatened by proposed mining projects.

Related posts:

Seasonal greetings from Geo-Mexico

 Other  Comments Off on Seasonal greetings from Geo-Mexico
Dec 232013
 

Geo-Mexico wishes all our readers a wonderful holiday season. May all your hopes and dreams come true.

Christmas ornaments in Chignahuapan

Christmas ornaments in Chignahuapan

See these previous Geo-Mexico posts to learn more about Christmas in Mexico:

We also recommend looking at MexConnect’s Christmas “Index Page” which has links to dozens of original, and fascinating articles related to Christmas in Mexico.

Enjoy!

Example of a sixteenth century map

 Other  Comments Off on Example of a sixteenth century map
Dec 072013
 

In the mid-sixteenth century, the Spanish Court was determined to acquire accurate information about everything being encountered in New Spain. This led to a series of censuses and accounts, including the Relaciones geográficas (Geographic Accounts).

The basis for the Geographic Accounts was a 50-question survey, sent to New Spain in 1577. The authorities in each administrative center were instructed to call a meeting of the “Spaniards and other natives in the district”, to find out everything they could about the area’s geography, people and history.

Of the 191 known responses to the 1577 questionnaire, 167 have survived in archives to the present day. Most of the original responses are housed in Spain, in either the Archivo General de las Indias in Seville or the Real Academia de la Historia in Madrid, while a further 43 responses form part of the Benson Latin American Collection in the University of Texas library in Austin. (The library’s webpage about the Relaciones geográficas has several links to images of sample pages and maps).

Map of Zempoala area from the Relaciones Geográficas

Map of Zempoala area from the Relaciones Geográficas (1577)

The accounts contain a wealth of information about population, relief, flora, fauna, economic activities and lifestyles. Some also include maps of the areas being described. However these early maps do not follow modern conventions in terms of having a uniform scale across the area being shown, or an orientation that is consistent in terms of compass directions. They are pictorial maps, where the scale varies across the map, and where areas are delimited, or places are linked, without apparent regard for direction.

One such map (see image above) depicts the area around Zempoala (Hidalgo). This is analyzed by Barbara E. Mundy, Associate Professor of Art History at Fordham University, in an online article, Mapping Babel: A Sixteenth-Century Indigenous Map from Mexico, published in The Appendix, a “journal of narrative and experimental history”. In the article, Mundy provides a detailed, step-by-step account of the map, with lots of additional related images and information.

Detail of map, showing Tepemayalco

Detail of map, showing Tepemaxalco

Mundy’s analysis reveals several “acts of translation” that have been made by the indigenous artist(s) presumed to be responsible for drawing the map.

For example, the artist(s) made the Spanish paper provided for the map more closely resemble its indigenous counterpart (bark paper), by joining sheets together to create the size they wanted for the map. In addition, unlike modern maps where the viewer is essentially static, with the map details arranged around them, indigenous maps demand changes of perspective, mobile viewers, who have to reorientate themselves depending where they are on the map in order to see things clearly.

Many of the images are a translation, perhaps of similar European images. For instance, like most towns on the map, Tepemaxalco is shown with “a conventional sign for a Christian chapel: a small building drawn in perspective with one side marked by a shadowing grey wash, topped with belfry and cross.”

The map also links the pictograph for each place name to its name written in alphabetic script. “The pictograph for Tepemaxalco (see image) registers some of its Nahuatl components: tepetl, ‘hill,’ maitl, ‘hand,’ xalli, ‘sand’ and co, ‘place of.’ Below, the name is written in alphabetic script, probably introduced by the Franciscans who evangelized this region.”

The dominant pictogram on this map is that for Zempoala (written “Cenpoballa” on the map). Mundy offers an interesting interpretation of this pictograph, which we hope to examine further in a future post.

Further reading

Barbara E Mundy. 2001. The Mapping of New Spain: Indigenous Cartography and the Maps of the Relaciones Geográficas.

Related posts:

How does Mexico’s unemployment rate compare to that of other countries?

 Other  Comments Off on How does Mexico’s unemployment rate compare to that of other countries?
Nov 212013
 

In a recent post, we looked at The pattern of unemployment in Mexico in 2013 and saw how states in northern Mexico have significantly higher unemployment rates than most of southern Mexico. In this post we consider international comparisons. How does the rate of unemployment in Mexico compare to the rates in other countries?

The OECD (Organisation for Economic Co-operation and Development) publishes harmonised unemployment rates for its 31 member countries. The OECD calculates Mexico’s harmonised unemployment rate for the third quarter of 2013 at 4.9%. This is quite encouraging, since the average for OECD countries is 7.9%. (Note that these figures do not include “underemployment”.) Mexico’s unemployment rate is more favorable than that of its NAFTA partners, Canada (currently 7.1%) and the USA (7.6%).

The OECD members with the highest unemployment rates are Greece (27.4%), Spain (26.6%),, Portugal (16.4%), the Slovak Republic (14.0%) and Ireland (13.8%).

Among OECD members, only South Korea (3.1%)  Japan (4.0%) and Austria (4.1%) have a lower harmonised unemployment rate than Mexico.

 

Nov 142013
 

About 160 kilometers (100 miles) north of Guadalajara as the crow flies is a wild and inhospitable arm of the Western Sierra Madre called the Sierra of Bolaños, a rugged northern extension of Jalisco most easily reached by light aircraft. The one way trip by road requires driving more than 320 kilometers (200 miles) from Guadalajara, half the distance being inside the adjacent state of Zacatecas. The Bolaños region has for centuries been an important silver mining area, and British capital and engineers left an indelible mark on the towns there.

Bolaños, the setting.

Bolaños, the setting. Credit: Tony Burton; all rights reserved

The once-grand colonial mining town of Bolaños fits snugly between the river and the rocky cliffs into which the first mine shafts were sunk. Its numerous old stone buildings, often with ornately carved doorways and windows, make it a fascinating place to wander around. With judicious restoration, Bolaños could undoubtedly find its way onto anyone’s list of Mexico’s top mining towns to visit. The town’s hanging bridge (puente colgante) links Bolaños, on the edge of mestizo territory, with the Huichol Indian villages in the mountains on the far side of the river. Huichol artwork, including colorful beadwork, is on sale in several stores in the town and it is common to see traditionally-dressed Huichol Indians in the streets.

Map of Jalisco state

Map of Jalisco. Copyright 2010 Tony Burton. All rights reserved.

Mineral riches

Relatively little is known of the pre-Columbian history of the Sierra of Bolaños but the area was probably only sparsely peopled, perhaps by Tepecano Indians. By the beginning of the seventeenth century, Spanish adventurers had founded the town of Chimaltitán which later served as their base for both subduing the natives militarily and converting them to Christianity. They later founded the towns of Bolaños, a short distance to the north, and San Martín de Bolaños to the south.

By the mid-eighteenth century, the Spanish were in complete control and the Bolaños mines were producing between 2 and 3 million pesos worth of silver per year, or about 25% of the silver production in the whole of New Spain—a very considerable amount, bearing in mind that each peso was then worth about a dollar.

By the 1760s, 16,000 people lived here. Overlooking an attractive small park in Bolaños is the rococo Guadalupe Chapel (the church of San José), a gift to the town from Antonio de Vivanco, owner of several mines. In 1789, de Vivanco became Marquis Vivanco, Viscount of Bolaños.The prosperity of these times is reflected in the sumptuous architecture of the buildings in Bolaños that date from this period. Two particularly fine examples are the Casa de la Condesa, and Antonio de Vivanco’s former home, with its unusual frescoes, both on the street which parallels the river. Bolaños even boasted a two-story Royal Mint, with a lovely facade. Built on one side of the main plaza in the 1750s, this partially restored gem has an Austrian Hapsburg two-headed eagle carved in the stone above its main door. This royal crest may have inspired the local Huichol Indians to use two and even four-headed eagles (a head for each cardinal direction) in their handicrafts.

Main plaza in Bolaños

Main plaza in Bolaños. Photo: Tony Burton; all rights reserved

But the boom times of the 1750s were not to last for ever. Following a series of floods (the most serious of which occurred in 1757 and 1781), land disputes, the ever-increasing quantities of costly mercury required for smelting, and disagreements over mining rights, Bolaños’s first boom period came to an abrupt end. By 1798 the town was virtually abandoned. Its largest church, begun in 1778, still stands half-finished; today, this is probably the only place in the world where you can play basketball under floodlights in the shell of an ancient church!

A new company and British miners

British influence in Mexico quickly gained momentum following Mexico’s Independence in 1821. On 27 September 1821, Agustín de Iturbide entered Mexico City in triumph. Most gachupines (Spanish-born residents of Mexico) had fled with whatever assets they could muster back to Spain. The rest were expelled in 1829. Iturbide desperately needed funds, to pay his 80,000-strong army and to set up an administration but, after eleven years of war and chaotic politics, the nation was fatigued and the Treasury empty.

In order to stimulate the Mexican economy, Iturbide needed to revive the mines, many of which had been abandoned during the Independence War. However, the mines had drainage problems and needed large investments of capital. Mexico’s need, coupled with the aspirations and greed of England’s capitalists, proved to be an unstoppable combination. Between 1820 and 1824, no fewer than seven different mining corporations relying on U.K. capital were formed in Mexico. One of these was the Venture Company of the Mines of Bolaños.

The Bolaños Company commissioned a full inspection of their mines. This concluded that, given “modern technology”, a fortune in silver was awaiting exploration, with a potential profit of over a million dollars. The firm’s investors were happy to pour money into bringing British machinery and the ingenuity of expert tin miners from Cornwall to back up their intentions.

In the early days, it was difficult and even dangerous to travel to the mines. No fewer than 15 of the 45 Cornish miners who accompanied the first shipment of machinery for Bolaños in 1825, died through accidents or disease before taking up their posts.

Mine owners had their own agenda. Most insisted that their miners worked completely naked in an effort to thwart any attempted pilfering of ore. Miners grew ever more ingenious in trying to circumvent the rules. They were discovered concealing silver ore in their hair, hollowed-out hammer handles, their mouths and ears, and even, on one occasion, inside the disemboweled body of an overseer killed in an accident!

Despite all the problems the British were determined to succeed. They built a reservoir above the village of Tepec and then a five kilometer long canal, much of it underground, to bring water to the town of Bolaños. On the east side of the small church in Tepec, a camposanto (cemetery) was built specifically for the English miners and their descendants since they were not Catholics and should not therefore be buried in the town’s main graveyard.

To assist in drainage, the British assembled two massive hydraulic wheels, one 12 meters, and the other 14 meters in diameter. Their most important contribution, though, was to import a 32-ton steam engine from the U.K. It took 106 days for this engine to be hauled over the mountains from Veracruz. Locals say that the reason the San José church now has only small bells is because the large ones were melted down to make wheel rims to help move the steam engine.

Bolaños grew into a town of more than 30,000 people, with seven major mines in production, employing thousands of workers. However, despite the mammoth injection of British capital and technology, the company failed to extract enough silver to obtain any return on its investment. In 1842, amidst political rumblings after several accidents and a fire which cost the lives of more than 150 miners, and with the Mexican government delaying payments for silver bars “bought” by the Mint, the company was wound up and Bolaños once again echoed to the sounds of bird-song rather than of hammer, chisel and steam engine.

The town’s population declined to fewer than 5000. It became a ghost town, another casualty of the ever-changing fortunes of mining centers around the world. Various attempts to revive the mines in the late nineteenth century by North American interests came to nothing. At the end of the last century, a U.S.-Mexico joint venture mined successfully for some years but finally went out of production in about 1998. Today, Bolaños is still a small town, a mere shadow of its former self, though one offering a few small hotels and ample opportunities for adventure, eco- and cultural tourism.

Twenty kilometers south of Bolaños, down the valley and past Chimaltitán, is San Martín de Bolaños. The El Pilón mine, near San Martín, opened in the 1980s, is the only mine currently operating in the valley. By 2007, it had produced over 30 million ounces of silver, as well as some ancillary gold.

A visit to this remote corner of Jalisco provokes deep feelings of admiration for the courage and audacity of all those who chose to settle here, including the nineteenth century British immigrants who left a Europe torn by upheaval, in search of fame and fortune in Mexico.

This is a lightly edited excerpt from chapter 23 of my Western Mexico: A Traveler’s Treasury (4th edition, 2013)

Other posts related to Bolaños:

The landforms of the El Pinacate and Gran Desierto de Altar Biosphere Reserve

 Other  Comments Off on The landforms of the El Pinacate and Gran Desierto de Altar Biosphere Reserve
Nov 092013
 

The breathtaking scenery of the El Pinacate and Gran Desierto de Altar Biosphere Reserve in the northern state of Sonora affords visitors a dramatic combination of two very distinct landscape types: volcanic landscapes (El Pinacate) in the east, and sand dunes (Gran Desierto de Altar) towards the west and south.

pinacate-map-googleVolcanic scenery (El Pinacate)

The eastern section of the Biosphere Reserve, El Pinacate, is a dormant volcanic area of around 200,000 ha (2000 sq. km), centered on the El Pinacate Shield (or Sierra Pinacate) which has 3 main peaks: Pinacate, Carnegie and Medio. The El Pinacate Shield is a composite structure, comprised of extensive, successive black and red lava flows, some more than 20 km long, seperated by desert pavement. The El Pinacate Shield boasts a wide array of volcanic phenomena and geological formations. Most of the lava is basaltic (alkaline) in composition, making it relatively fluid when molten; it is mainly of the aa (blocky) type, though some pahoehoe (ropy) lava is also found. The total volume of lava is estimated at between 150 and 180 km3.

Elegante Crater, El Pinacate

Elegante Crater, El Pinacate (example of a maar) Credit: IUCN Tilman Jaeger

Besides the lave flows, the Pinacate area has more than 400 cinder cones (formed 1.2 million years ago) and several lava tubes. The lava flows and cinder cones are only a prelude to the most visually striking features in the reserve: 10 enormous, deep, and almost perfectly circular maars (steam explosion craters). Maars are believed to originate from a combination of explosion caused by groundwater coming into contact with hot lava or magma and subsequent collapse. The maars of El Pinacate are rivalled only by similar formations in Africa. The largest single maar is El Elegante, formed 32,000 years ago, which is 1,400 meters (4,600 feet) from rim to rim and 140 meters (460 feet) deep. It takes visitors a two to three-hour hike to reach its rim and be rewarded by a spectacular view.

The volcanic forms of El Pinacate are relatively recent in geological terms, most having been formed during the Quaternary Period, which began some 2.8 million years ago. The most recent volcanic activity in this area was only about 11,000 years ago. Some volcanologists believe that some of these craters could become active again in the future, with the potential to form volcanoes up to a few hundred meters in height.

Ron Mader, the founder of Planeta.com and a foremost authority on responsible tourism in Mexico, has marveled at the “bizarre and mind-boggling scenery” of El Pinacate., which so resemble the lunar landscape that between 1865 and 1970 it was used by NASA as a training ground for astronauts preparing for the moon landings. The lava field is so vast and sharply defined that it later turned out that the astronauts could easily recognize it from space!

Sand dunes (Gran Desierto de Altar)

The western and southern parts of the El Pinacate and Gran Desierto de Altar Biosphere Reserve have entirely different scenery. The Gran Desierto de Altar is North America’s largest field of active sand dunes (erg). Several types of dunes are represented here, the tallest reaching 200 meters in height.

The sand needed to form and maintain these dunes comes from the fluvial and deltaic sediments of the Colorado River delta (to the west), the beaches of the Sea of Cortés/Gulf of California (to the south), the River Sonoyta (to the east) and the smaller river and stream fans formed in those parts of the reserve where there are volcanic and granitic mountains.

Sand dunes of Gran Desierto de Altar

Sand dunes of Gran Desierto de Altar

Prior to the opening of the Sea of Cortés (Gulf of California), vast amounts of sediment accumulated in this region brought by rivers of which little trace remains today. The creation of the Sea of Cortés, 5.3 million years ago, shortened the rivers and increased their average gradient (rejuvenation), causing them to cut into the pre-existing landscape leaving behind river terraces, remnants of the former higher level floodplains.

The fields of sand dunes of the Gran Desierto de Altar cover more than 550,000 hectares (5700 sq.km.) Several different kinds of sand dunes are found here–linear, crescent-shaped (barchans) and star-shaped–and they can be simple, compound or complex, depending on seasonal changes in the direction and strength of the wind.

Although linear dunes dominate (70%), crescent-shaped complex dunes and star-shaped dunes are of more interest because they exist in only a few locations in the world. Spectacular and very large star-shaped dunes, up to 200 meters high, occur both singly and in long ridges up to 48km in length. Star-shaped dunes possibly evolved from crescent dunes which changed their direction of movement becoming “reversing dunes”. Side winds may account for the multiple arms of some star-shaped dunes.

Other features – Granite massifs

In addition, there are several granite massifs (inselbergs), such as the Sierra del Rosario, emerging like islands from the sandy desert flats and dunes. They range in elevation from 300 to 650 meters above sea level. They represent another remarkable landscape feature harboring distinct plant and wildlife communities.

Main source:

Related posts:

Nov 062013
 

Mexico City and its surrounding areas have a strict “Hoy no circula” (“Today you can’t drive” or “Day without a Car”) program. The program is intended to reduce air pollution from vehicle emissions.

Day without a car table

The graphic shows the major rules for most vehicles. With few exceptions, these rules apply to all tourist vehicles as well as Mexican-plated vehicles.

Click here for a Wikipedia article with more details of the rules, including Saturday rules and exceptions

Area subject to “Day without a Car” rules, November-2013. All rights reserved.

As of November 2013, the “Hoy no circula” program applies to the Federal District and the following 18 adjoining municipalities in the State of Mexico (see map):

  • Atizapán de Zaragoza
  • Coacalco de Berriozabal
  • Cuautitlán
  • Cuautitlán Izcalli
  • Chalco
  • Chimalhuacan
  • Chicoloapan
  • Ecatepec de Morelos
  • Huixquilucan
  • Ixtapaluca
  • La Paz
  • Naucalpan de Juárez
  • Nezahualcóyotl
  • Nicolás Romero
  • Tecámac
  • Tlalnepantla de Baz
  • Tultitlán
  • Valle de Chalco Solidaridad

No responsibility or liability is assumed for any situation arising from the information contained within this post, which is believed to be accurate at the time of writing. For more details about the growth of Mexico City, and its urban issues and management strategies, consider buying a copy of Geo-Mexico: the geography and dynamics of modern Mexico, available from all good bookstores, as well as via amazon.com or this webpage.

Nov 022013
 

Innovation is an important ingredient of economic growth, especially growth in the decades ahead. While most people know what innovation is, it is not an easy concept to measure. Fortunately three different groups have attempted to measure it and compare countries on their “innovativeness”. All three rely on such measures as research and development, number of patents, number of researchers per person, manufacturing, and the percentage of college graduates with science and engineering degrees. However, the number and character of the specific individual variables they use are quite different. As a result their international rankings can be very different. The three approaches are briefly discussed below.

1. Bloomberg’s “Global Innovation Quotient” is based on R&D intensity (20%); manufacturing capability (10%); researcher concentration (20%); productivity (20%); High-tech density (20%); patent activity (5%) and tertiary (education) efficiency (5%).  [For more details, see Global Innovation Index (pdf)]

Bloomberg’s “Global Innovation Quotient”, for 96 countries, ranked Mexico ranked in 2012 as 46th, just behind Chile (41st) and Argentina (43rd), but ahead of Brazil (57th) and Venezuela (62nd). Other notable countries ranked as follows: Finland (1st), Singapore (2nd), USA (7th), Switzerland (8th), Canada (19th), Russia (22nd), Israel (29th) and China (32nd) and Indonesia (64th).

2. In 2009, a “Global Innovation Index” was produced by The Boston Consulting Group (BCG), the National Association of Manufacturers (NAM), and The Manufacturing Institute (MI). In March 2009, the Global Innovation Index ranked Mexico 57th. For comparison, it had Chile at 37th, Argentina at 92nd, Brazil at 72nd, and Venezuela at 108th.

These rankings are significantly higher than the Bloomberg rankings above because this index included more countries which pushed the Latin American countries lower down on the ranking list. But there are other important differences in how innovativeness was measured in the two studies. Compare the following rankings with the ones in paragraph above: Finland (7th), Singapore (1st), Switzerland (3rd), USA (8th), Canada (14th), Russia (49th), (Israel 16th), China (27th) and Indonesia (71st).

3. The third index, confusingly also called the “Global Innovation Index”, is published jointly by Cornell University, INSEAD (The Business School of the World) and the World Intellectual Property Organization (WIPO).

global-innovation-index-2013This very complicated index is based on six pillars (Institutions, human and capital research, infrastructure, market sophistication, business sophistication, knowledge and technological outputs and creative outputs.), each with sub-pillars, and a total of 84 indicators. Of the 134 countries analyzed in 2012, Mexico ranked 79th, way behind Chile (39th) also lagging behind Brazil (58th) and Argentina (70th), but way ahead of Venezuela (118th). This complex index’s rankings are different from but generally align with the two other indices: Finland (4th), Singapore (3rd), USA (10th), Switzerland (1st), Canada (12th), Russia (51st), Israel (17th) China (34th) and Indonesia (100th).

Conclusion

These three indices appear to tell us that Mexico is relatively weak when it comes to innovativeness. Mexico, along with Brazil and India, appears to lag behind other major emerging economies such as China, Russia, South Africa and Thailand. This is a bit surprising considering that Mexico is a world leader in the export of smart phones, flat panel TVs, automobiles and appliances. Apparently these exports are manufactured in Mexico but the innovations that go into their designs mostly come from elsewhere.

Though Mexico is graduating thousands of engineers and science majors, these are either not yet innovating or are finding employment in other countries. If Mexico is to compete in future world trade, it would do well to take steps now to improve its innovativeness.

Related posts:

The growth of the city of Monterrey, Mexico’s industrial powerhouse

 Excerpts from Geo-Mexico, Other  Comments Off on The growth of the city of Monterrey, Mexico’s industrial powerhouse
Oct 282013
 

A series of historical maps of the city of Monterrey was published earlier this year in the city’s online Catalog of Buildings of Historic and Artistic Importance in Barro Antiguo, The maps, dated 1765, 1791, 1846, 1865, 1922, 1933 and 1947 respectively, offer a good basis for considering the urban growth of Monterrey, the industrial powerhouse of northern Mexico.

In chapter 22 of Geo-Mexico, the geography and dynamics of modern Mexico, we explained why, “Monterrey does not fit the general Latin American urban model as well as Mexico City or Guadalajara. First, it never really existed as a colonial city. Secondly, its development was more heavily dependent on industry. Thirdly, its relative wealth and progressive leadership in some ways make it more similar to a North American city than a Latin American city. It fits the model only in that it developed a definite high status sector in contrast to lower status industrial sectors, and eventually became spatially fragmented.”

But just how did Monterrey develop as a city? In each of the following historical maps of Monterrey, Barrio Antiguo (16 blocks in size in the present-day city) is marked by a red quarter-circle, which is an easy way to check each map’s orientation and scale. Monterrey was founded in 1596. The earliest map in our series, for 1765, shows that, even by that date, Monterrey was still a relatively small settlement situated between a (seasonally dry) “stream formed by various springs” (to the top of the map, north) and the seasonally-dry “Monterrey River” (now called the Santa Catarina River). The Barrio Antiguo is shown as mostly an empty area, with only one major construction.

Monterrey 1765

Monterrey 1765

Very little has changed by 1791 (see map below: note that this map is oriented south-upwards), though the Barrio Antiguo has now been developed, and is shows as having several streets in a clear grid pattern:

monterrey-1791

Monterrey in 1791

The grid pattern for Barrio Antiguo is equally evident in the details of the map in 1846:

monterrey-1846

Monterrey in 1846

As of 1846, no development is shown on the south bank of the Santa Catarina River, though tracks are shown heading east and south-east respectively from the city. The next map, for 1865, shows that the city is beginning to expand to the south. A substantial settlement is developing on the south bank, more of less opposite the Barrio Antiguo. Note, though, that this map shows only part of the city:

monterrey-1865

Monterrey in 1865

Clearly, Monterrey only emerged as a real city after the colonial period which ended in 1821. The relatively small city did not experience real growth until late in the 19th century when it became connected by railroad and started to attract industrial development.

Early in the 20th century, investors built the then largest iron and steel works in Latin America a few kilometers east of the city center. Many related industries located nearby. These industries and the railroad, which ran east–west about four kilometers (2.5 mi) north of the city center, stimulated early industrial development in these directions. Developers established low income housing tracts for industrial and other workers on the east, north and west periphery of the city. Neighborhoods for the wealthier classes were developed south of the city center.

By 1933, Monterrey has grown significantly in area, especially towards the north:

monterrey-1933-whole-city

The city of Monterrey in 1933

Between 1933 and 1947, the city continues to expand, with many areas being infilled with residences:

monterrey-1947

The city of Monterrey in 1947

The city experienced another surge of industrialization and immigration in the 1950s and 1960s. Industrial development continued after 1970 when the national government implemented policies to shift development away from Mexico City. Monterrey became a major producer of steel, metal fabrication, cement, beverages, petrochemicals, food, telecommunications, auto parts, glass, and house furnishings. It also developed into a major financial center and one of the wealthiest and most progressive cities in the country.

Low income housing became a serious problem after the 1960s as the inner city tenements became extremely crowded. The government was not sympathetic to irregular housing schemes, so low income groups established numerous illegal squatter settlements on vacant land near the industrial zone. Government made a few efforts to remove these, but most survived and eventually became regularized.

The high status sector expanded south-west into San Pedro Garza García, which became one of the wealthiest municipalities in Mexico. The high overall income and wages in the city meant that many workers could afford home ownership and private automobiles. As a result, many gated communities (large and small) and suburban shopping malls were built around the urban periphery. The urban area became relatively fragmented with many low income residential zones located near high income areas.

Source of the maps used in this post:

Other posts about the urban geography of Mexico’s cities:

Oct 242013
 

Mexico’s latest UNESCO World Heritage Site is the El Pinacate and Gran Desierto de Altar Biosphere Reserve in Sonora, added to the UNESCO list in June 2013. Mexico now has 32 World Heritage Sites.

The El Pinacate and Gran Desierto de Altar Biosphere Reserve is part of the Sonoran desert, which extends from Sonora into the northern part of Baja California, and across the U.S. border into Arizona and California. The reserve covers 714,566 hectares with an additional 354,871 hectares of buffer zone. It is a relatively undisturbed portion of the Sonoran desert, and offers visitors a dramatic combination of two very distinct landscape types: volcanic landscapes (El Pinacate) and sand dunes (Gran Desierto de Altar).

pinacate-map-googleThe biosphere reserve is immediately south of the U.S. border, west of the Lukeville (Arizona) – Sonoyta (Sonora) border crossing, and 50 km (30 miles) north of the fishing and tourist town of Puerto Peñasco. The San Luis Río Colorado–Sonoyta section of Mexican federal highway 2 (which runs from Mexicali to Caborca) skirts the northern section of the reserve. Puerto Peñasco is connected to Sonoyta by highway 8. There are entrances to the park from highway 2, 50 km west of Sonoyta, and from highway 8, mid-way between Sonoyta and Puerto Peñasco.

Despite being a desert area, most parts of the biosphere reserve do receive occasional rainfall, which gives this area more biodiversity than is true for most deserts.

El Pinacate and Gran Desierto de Altar Biosphere ReserveVaried scenery

The eastern section of the biosphere reserve, El Pinacate, is a dormant volcanic area of around 200,000 ha (2000 sq. km), centered on the El Pinacate Shield (or Sierra Pinacate) which has lava flows, cinder cones, lava tubes and circular maars (steam explosion craters). Ron Mader, the founder of Planeta.com and a foremost authority on responsible tourism in Mexico, has marveled at the “bizarre and mind-boggling scenery” of El Pinacate. The geology and landforms of this area so resemble the lunar landscape that between 1865 and 1970 NASA used it as a training ground for astronauts preparing for the moon landings. The lava field is so vast and sharply defined that it later turned out that the astronauts could easily recognize it from space!

The western and southern parts of the El Pinacate and Gran Desierto de Altar Biosphere Reserve are entirely different. The Gran Desierto de Altar is North America’s largest field of active sand dunes (erg), more than 550,000 hectares (5700 sq.km.) in area. Several types of dunes are represented here, the tallest reaching 200 meters in height, including linear, crescent-shaped (barchans) and star-shaped dunes.

Flora and Fauna

The highly diverse mosaic of habitats in the biosphere reserve is home to complex communities and a surprisingly high species diversity. More than 540 species of vascular plants, 44 mammals, more than 200 birds and over 40 reptiles inhabit this seemingly inhospitable desert. All feature sophisticated physiological and behavioural adaptations to the extreme environmental conditions. Insect diversity is high, though not fully documented. Several endemic species of plants and animals exist, including two freshwater fish species.

The flora in Sierra Pinacate includes the sculptural elephant tree (Bursera microphylla). The name “Pinacate” derives from pinacatl, the Nahuatl word for the endemic desert stink beetle. The biosphere reserve has large caves inhabited by the migratory lesser long-nosed bat (Leptonycteris curasoae yerbabuenae), which is an important pollinator and seed dispersal vector, and the endangered fish-eating bat (Myotis vivesi); both species are endemic.

Other noteworthy species in the reserve include the threatened Sonoran pronghorn (Antilocapra americana sonorensis), an endemic subspecies of restricted habitat and the fastest land mammal in North America; bighorn sheep (Ovis canadensis mexicana), the mule deer (Odocoileus hemionus) and gray fox (Urocyon cinereoargenteus), the Gila monster (Heloderma suspectum) and desert tortoise (Gopherus agassizii).

Human occupation and use

El Pinacate and Gran Desierto de Altar contains numerous archaeological remains, some dating back more than 20,000 years. It is an important cultural site for the indigenous Tohono O’odham people who consider El Pinacate peak, where they still perform sacred ceremonies, as the place where  creation occurred.

Management issues

The El Pinacate section of the biosphere reserve was first designated a “protected area” in 1979. In 1993, it was a declared a Biosphere Reserve, along with the Gran Desierto de Altar, by then president Carlos Salinas de Gortari. The biosphere reserve is managed by Mexico’s National Commission of Natural Protected Areas (Conanp), in collaboration with the Sonora state government and the Tohono O’odham people.

The number of people visiting the reserve has risen rapidly from fewer than 6,000 in 2000 to more than 17,500 in 2010. The two major challenges that management needs to take into account are how to ensure that indigenous views about the reserve’s use are respected, and how to limit negative impacts on the reserve from nearby tourism developments.

The potential negative impacts include:

  • increased vehicle traffic, resulting in ecological disturbance, littering and wildlife road kills.
  • pressure to extend the limited existing road infrastructure by adding new roads, though this might lead to more exotic (alien) invasive species.
  • increased habitat damage from the growing use of off-road vehicles

UNESCO considers that, “The most critical long term management issue is to address potential problems derived from tourism-related water consumption.”

Given that this reserve is on the Mexico-U.S. border, transboundary cooperation is essential, and UNESCO actually recommends that the best way forward is to establish a Transboundary Protected Area, extending into Arizona.

The combination of a volcanic shield with spectacular craters and lava flows, almost entirely surrounded by an immense sea of dunes, makes this an area of great scientific interest, and an ideal laboratory for researchers interested in geology and geomorphology.

[Note: This post makes extensive use of UNESCO’s description of the biosphere reserve, with additional information from a variety of other sources.]

Want to read more?

Related posts:

New Durango-Mazatlán highway officially open

 Other  Comments Off on New Durango-Mazatlán highway officially open
Oct 172013
 

President Enrique Peña Nieto has officially opened the new Durango-Mazatlán highway which has taken more than a decade to complete. He inaugurated the new highway early today (17 October), Mexico’s annual “Road Workers’ Day” (“Día del Caminero”).

The new 1.2-billion-dollar, partly 4-lane, 230-kilometer highway will slash the time taken to drive from the city of Durango to the Pacific coast resort of Mazatlán, from 5 hours to about 3 hours. It is by far the single most important and complex road project in Mexico in recent years.

Mexico's major highways (Fig 17-3 of Geo-Mexico, the geography and dynamics of modern Mexico).

Mexico’s major highways (Fig 17-3 of Geo-Mexico, the geography and dynamics of modern Mexico). All rights reserved.

The most spectacular part of the highway is the Baluarte Bridge (Puente Baluarte), the tallest cable-stayed bridge in the world, which straddles the border between the states of Sinaloa and Durango and circumvents the need to negotiate the twisting and dangerous route taken by the old highway through the Espinazo del Diablo (Devil’s Spine). The Baluarte Bridge is a 1,124-meter-long bridge that rises almost 400 meters above the river below. The highway also includes 63 tunnels, the longest of which (El Sinaloense) is 2800 meters in length.

Durango-Mazatlan highwayThe firms involved in constructing the highway included Omega Corp, Tradeco Industrial, FCC Construcción, La Peninsular Compañía Constructora, Grupo Mexicano de Desarrollo and Grupo Hermes.

The highway has four toll booths; car drivers will pay about $500 pesos in total for a one-way trip along the entire length of the new highway. The highway is expected to carry 3,000 vehicles a day during its first year of operation, a figure expected to rise to 6,000 vehicles a day within the next six years.

Note: We are still waiting for a first-hand report from anyone who has driven the new highway. While the highway has been officially opened, at least one section of the highway is not yet open to regular traffic because of on-going repairs due to damage sustained during last month’s storms.

More photos?

Related posts:

Are Aztec chinampas a good model for food production and agro-development?

 Other  Comments Off on Are Aztec chinampas a good model for food production and agro-development?
Oct 072013
 

There is no doubt that Mexico’s indigenous farmers developed numerous ways to ensure successful harvests. The details varied from one region to another, but among the techniques employed were:

  • the mitigation of erosion by building earth banks and check dams in gullies
  • polyculture, recognizing that this minimized the risks inherent in monoculture.
  • the terracing of steep slopes to channel water where it was most needed.

In addition, some indigenous groups, including the Aztec in central Mexico, took advantage of their expertise in water management to develop highly productive systems of farming in wetlands. The chinampas (or so-called ‘floating gardens’) in the Valley of Mexico are the prime example of this water management skill, though similar systems were also used in the coastal marshes along the Gulf coast.

On the other hand, the later introduction of large-scale commercial farming methods has often led to deleterious impacts on the countryside and the long term sustainability of such methods is questionable.

In seeking to help Mexico’s rural areas, some development experts have suggested re-adopting Aztec methods, especially their method of building chinampas to farm wetlands. The invention of chinampas as a highly productive form of intensive wetland cultivation was, historically, one of the greatest ever agricultural advances in the Americas. Among other things, it allowed settlements to thrive in areas where rain (and therefore rain-fed food production) was markedly seasonal.

Among attempts to re-introduce ancient methods, one which stands out occurred in the 1970s and 1980s, when INIREB (Instituto Nacional de Investigaciones sobre Recursos Bióticos), based in Xalapa (Veracruz) employed chinamperos from the Valley of Mexico to build experimental chinampa-like fields in Veracruz and Tabasco . These projects are briefly described in Andrew Sluyter’s fascinating book Colonialism and Landscape, Postcolonial theory and applications (Rowman and Littlefield, 2002), the main basis for this summary.

Google Earth image of camellones chontales

Google Earth image of camellones chontales

The most ambitious project was a later federally-organized one in Tabasco, where 65 massive platforms (camellones), each about 30 meters wide and from 100 to 300 meters long, were built in the swampy Chontalpa wetlands. The project, known as camellones chontales was backed by the local Chontal community though it was not directly involved in the construction phase. Because of the scale of the project, large mechanical dredgers were used to build the platforms, rather than relying on laborious and slower hand labor.

After construction, the Chontal community began farming the platforms, but initial results were very disappointing. Things improved with time, especially when the Chontal took full control of the project. From their perspective, the project meant that more members of the community now had land that could be farmed, and they shifted the emphasis away from the “vegetable market production” favored by officials towards growing corn (maize), beans and bananas for local household consumption, improving local food availability.

Recent press reports, such as this 2-minute Youtube clip (Spanish), claim that many parts of the camellones chantales have now been abandoned, owing to insufficient investment in maintenance.

Why did the project fail initially?

This is one of the key questions connected to this example. Sluyter refers to two articles written by Mac Chapin (from Cultural Survival, an organization that champions the rights of native peoples). Chapin argues that the projects, and their assumptions, were fundamentally flawed. For example, the use of dredges to construct the platforms turned the soil profile upside down, bringing infertile clay towards the top and sending nutrient-rich layers downwards, beneath the reach of plant roots. In turn, this meant that organic matter and fertilizers had to be added to the land in order for good crop yields. Because of the dredging, the canal floor between the platforms was very irregular, making it much more difficult for the Chontal to fish using drag nets. Many of the crops planted were “exotic” and production was market-oriented rather than subsistence or locally-oriented. Chapin was particularly critical of the lack of suitable transport routes for sending produce to distant markets. In addition, chemicals were needed because of the proliferation of insects in these lowland wetlands. (Insects are rarely a problem at the higher altitudes of central Mexico).

Chapin concluded that this development project was just one more in a long line of failures where an outside model was introduced into a new area without sufficient prior research or local involvement in the planning stages. Sluyter agrees with this conclusion, pointing out that there is no evidence that these Tabasco wetlands ever had any form of chinampa farming, even in pre-Columbian times, perhaps because they have “a much greater annual fluctuation in water level than those in Campeche and Veracruz”.

Want to read more?

Related posts:

Geotourism in Mexico: García Caves (Grutas de García) in Nuevo León

 Other  Comments Off on Geotourism in Mexico: García Caves (Grutas de García) in Nuevo León
Oct 032013
 

The Garcia Caves (Grutas de García) are located in the Cumbres de Monterrey National Park, 9 km from the small town of Villa de García, and about 30 km from the city of Monterrey (state capital of Nuevo León). The highest point in the park is Copete de las Águilas which rises to 2260 m (7,410 ft) above sea level, but its best known peak is Saddle Hill (Cerro de la Silla), the distinctive saddle-shaped hill that overlooks the city.

Much of the park, including the mountains, are composed of sedimentary rocks that were originally laid down as marine sediments and then subsequently folded, uplifted and exposed to erosion. The extensive areas of limestone in the park, which date from the Cretaceous period, have been subject to karstification over 50 to 60 million years, which has resulted in typical karst landforms such as sinkholes, caves, cave formations and underground streams.

The Garcia Caves, one of the largest cave systems in Mexico, are deep inside the imposing Cerro del Fraile, a mountain whose summit rises to an elevation of 1080 meters above sea level, more than 700 meters above the main access road. The entrance to the caves is usually accessed via a short ride on a 625-meter cable car that was built to replace a funicular railway.

The cave system was first reported in 1843 by the Marmolejo family who informed their local prist Juan Antonio Sobrevilla that they had stumbled across it while looking for firewood.

Grutas de García. Credit: María de Lourdes Alonso

Grutas de García. Credit: María de Lourdes Alonso

Guided tours of the cave system show visitors some of its 27 separate chambers along a 2.5-kilometer (1.6 mile) route. The full system extends more than a kilometer further into the mountain reaching depths of more than 100 meters (340 feet) beneath the surface. The limestone of the cave walls contains lots of marine fossils. The caves have extensive and impressive formations of dripstone, including stalactities, stalagmites and other forms.

Unlike the suffocating heat of the Naica Crystal Caves in Chihuahua, the cave temperature here remains about 18̊C (65̊F) all year.

The chambers and formations have been given whimsical and imaginative names such as

  • “El salón de la luz” (The Light Chamber) where the natural translucence of the ceiling rock allows light from the outside to filter through.
  • “La octava maravilla” (The Eighth Wonder), a natural column formed where a stalagmite growing from the floor joined a stalactite, growing from the ceiling
  • “El mirador de la mano”, a stalagmite shaped like a human hand.
  • “El Nacimiento” (The Nativity),
  • “La Fuente Congelada” (The Frozen Fountain),
  • “La Torre China” (The Chinese Tower),
  • “El teatro” (The Theatre), and
  • “El Árbol de Navidad” (The Christmas Tree).

Want to read more about caves in Mexico?

Visit John Pint’s website for a selection of his writing, with many original articles, illustrated with great photographs, about many individual caves in Mexico.

Related posts

Have big cities in Mexico succeeded in meeting people’s needs?

 Books and resources, Other  Comments Off on Have big cities in Mexico succeeded in meeting people’s needs?
Sep 262013
 

In 2012, the Mexican Institute for Competitiveness (Instituto Mexicano para la Competitividad AC, IMCO) published an analysis of the competitiveness of 77 of the largest cities in Mexico, looking to see which of them offered balanced growth alongside a good quality of life for their inhabitants.

portada_indiceThe elements of competitiveness considered included the degree of compactness (more compact cities are more efficient and sustainable), public finances, transport, security, water management and waste management. The IMCO methodology is explained in detail in the report Índice de Competitividad Urbana 2012. In short, IMCO evaluated each of the 364 municipalities involved in the 77 cities, using 60 indicators grouped into 10 mutually-exclusive sub-indexes.

Between them, these 77 cities house 63% of Mexico’s total population and account for 80% of Mexico’s GDP. 55% of Mexico’s population live in cities managed by two or more municipalities. IMCO found that public transport was adequately coordinated in only 13% of cities with two or more municipalities, while urban planning was coordinated in 35% of the multi-municipality cities.

The IMCO report concludes than most Mexican cities do NOT offer balanced growth and a decent quality of life for residents. Individual cities can be compared using this IMCO site.

The only city offering a “High” level of competitiveness was Monterrey.

Several cities offered an “Adequate” level: Mexico City, San Luis Potosí, Querétaro, Ciudad del Carmen, Saltillo, Tampico, Colima, Guadalajara, Mexicali, Monclova and Campeche.

At the other end of the spectrum, the competitiveness of several cities in Mexico was categorized as “Low”: La Piedad, Cd. Cárdenas, Rioverde, Matamoros, Tehuantepec, Tijuana, San Francisco del Rincón, Cd. Juárez, Ensenada and Poza Rica.

The lowest levels of competitiveness (“Very Low”) among the 77 cities studied were found in two cities in the state of Guerrero: Chilpancingo and Acapulco.

The report used data from 2010, so some aspects of these cities will have changed since that date. For example, the sharply increased murder rate in Monterrey since 2010 will have reduced its lead over other cities.

Certain cities have faced severe challenges of rapid growth. In recent decades, the cities that have grown most rapidly have not been the very large cities like Monterrey, but mid-sized cities. One example of a mid-sized city that has grown rapidly is Ciudad Juárez, whose area grew 497% from 1980 to 2009, while its population rose 70%. This rapid growth may have contributed to the high levels of crime experienced in the city.

IMCO concludes that Mexican cities are showing clear signs of not functioning well: chaotic expansion, heavey traffic, high levels of air pollution, poor supply and/or quality of potable water, high crime levels. These have caused cities to lose competitiveness and the capacity to attract human talent from outside, whether for business, sports or research.

The single obstacles to increased competitiveness are the lack of professional urban management, and the fact that many cities involve two or more municipalities. The laws governing municipal elections inevitably mean that administrations are short-term, with a high level of staff turnover. The impossibility of re-election means that many urban projects are overly superficial and they lack continuity from one administration to the next.

IMCO suggests that a new administrative position be created: the city manager (administrador urbano). The city manager would be a professional manager, and would ensure that the city has adequate coordination for all urban public services, even where more than one municipality is involved. This would free the municipal politicians from having to tackle the day-to-day management issues of the city and allow them more time to engage productively with the citizenry. However, for this to happen, a major institutional innovation is required.

Related posts:

Where do most Hispanics in the USA live?

 Other  Comments Off on Where do most Hispanics in the USA live?
Sep 232013
 

A recent study by Pew Research analyzes the geographical distribution of the over 53 million Hispanics who currently live in the USA. The “Hispanic” or “Latino” population is composed of many different segments. It includes families that have lived in the USA for numerous generations as well as recent immigrants from many countries. Mexicans are by far the largest Hispanic origin group. There are 34.7 million Mexicans in the USA accounting for 64% of all Hispanics. A future post will look at the geographic distribution of Mexicans in the USA. Several previous posts, including “Recent trends for Mexicans living in the USA”, have investigated the socio-economic characteristics of Mexicans living in the USA.

Though Hispanics are spreading throughout the country, they still tend to be concentrated in the west, particularly states that border Mexico [see map]. Almost half (46%) of Hispanics live in California (14.4 million) or Texas (9.8). Other states with relatively large Hispanic populations include Florida (3.5m), Illinois (2.1m) and Arizona (1.9m). Almost 47% of New Mexico’s population is Hispanic compared to 38% in both California and Texas.

Map of Hispanic population in USAFully 44% of Hispanics live in only 10 metropolitan areas. Almost half (46%) of the Greater Los Angeles population is Hispanic. The Los Angeles–Long Beach metro area has 5.8 million Hispanics and the neighboring Riverside–San Bernadino metro area has another 2.1 million, giving Greater Los Angeles 7.9 million Hispanics, 15% of the USA total. The New York–Northeastern New Jersey metropolitan area is next with 4.3 million Hispanics. Other metro areas with large Hispanic populations include Houston (2.1m), Chicago (2.0m), Dallas (1.8m), Miami (1.6m), San Francisco–San Jose (1.6), Phoenix (1.2m), San Antonio (1.1m) and San Diego (1.0m).

Over 80% of the Greater Los Angeles Hispanic population is Mexican. Mexicans also dominate the Hispanic populations in Houston (78%), Chicago (79%), Dallas (85%) as well as most other metro areas in the USA. In metro New York, Puerto Ricans are most numerous among Hispanics (28%) followed by Dominicans (21%) and Mexicans (12%). Puerto Ricans are also most numerous in Orlando (51%), Tampa–St Petersburg (34%), Philadelphia (56%), Boston (29%) and Hartford (69%). Cubans dominate the Hispanic population in Miami (55%), Fort Lauderdale (21%) and West Palm Beach (21%). In metro Washington DC, Salvadorians are most numerous among Hispanics (32%).

Roughly one third (36%) of all Hispanics in the USA are foreign-born; the rest were all born in the USA. Miami has the highest proportion of foreign-born Hispanics with 66%. No other metro area with over a million Hispanics has more than 43% foreign-born. On the other hand, only 17% of Hispanics in the San Antonio area are foreign-born with 83% born in the USA.

Source of data:

Related posts:

Sep 212013
 

Silver working in Mexico

The center of Mexico’s silver craftsmen and silver making industry is the city of Taxco, in the state of Guerrero. Several pre-colonial groups had developed the technical skills needed to fashion elaborate and complex silver items, especially jewelry, but knowledge of these techniques had largely died out by the start of the 20th century. Somewhat surprisingly, the silver-making industry was reignited in Taxco by an American, William Spratling.

taxco silver

Credit: ~ Artesanas Campesinas de Tecalpulco, Taxco, Guerrero

Spratling (1900-1967) was an American-born silversmith and artist, best remembered today for having reinvigorated 20th century Mexican silver design. Spratling started a small silver industry in the picturesque town of Taxco in the state of Guerrero in 1931, with the intention of benefiting local people. Taxco was one of the earliest silver-mining areas exploited during colonial times. Local silver mines were still important in Spratling’s day, but have since closed, with silver brought in to Taxco from elsewhere in Mexico.

William Spratling’s designes were based on pre-colonial motifs and he trained local craftsmen to produce them in his workshop Taller de las Delicias. He gained a reputation for fine designs and excellent workmanship. Many of his apprentices went on to found their own silver workshops. Silver working became very popular in Taxco and the town gradually transformed itself into Mexico’s premier showcase for high quality silver work of all kinds, from jewelry to tableware. Over the years, the town attracted shoppers and has also become a very important tourist destination.

Taxco, Mexico's city of silversmiths

Taxco, Mexico’s city of silversmiths

Sometimes called the “Father of Mexican Silver”, Spratling not only sold silver locally in Taxco, but also supplied silver items to stores such as Neiman Marcus and Saks Fifth Avenue in New York and elsewhere. Some of his earliest work was inspired by stonework reliefs in nearby archaeological sites such as Xochicalco. The William Spratling Museum near Taxco’s main plaza showcases his personal collection of archeological pieces as well as his original silver-work designs and workshops.

Silver-working exists in many other Mexican towns and cities, but Taxco is the premier place in Mexico for tourists interested in seeing or purchasing fine silver. The town celebrates the National Silver Fair (Feria Nacional de La Plata) in late November each year. The 76th annual Silver Fair runs from Saturday 30 November to Saturday, 7 December 2013.

Many of Spratling’s original designs are still being made today. For example, Spratling Renaissance (which sells silver from Taxco via its online store) proudly proclaims that, “The legacy of William Spratling is the powerful motivator of a collaboration between the last of the generation of Taxco master silversmiths and the rural women artisans of Tecalpulco, a village in the Municipio of Taxco de Alarcón, Guerrero. The jewelry employs old-fashioned jewelry-making arts to fashion ornamental esthetic objects worthy of a museum. Every piece coming from this shop is a perfect reproduction of the unique original masterworks of William Spratling.”

Of several books about Spratling, Sandraline Cederwall’s Spratling Silver stands out. Cederwall is a pre-eminent collectector-dealer of Spratling silver. The latest edition of this work includes an expanded text, many new photographs, and a biographical essay by Barnaby Conrad, a friend and contemporary of the noted silver designer. The book features dramatic black-and-white photographs of silver artworks, underscoring the “intelligent, simple, restrained” yet appealing style that makes Spratling’s designs so collectible.

Related posts:

Cross-border tribe faces a tough future

 Other  Comments Off on Cross-border tribe faces a tough future
Sep 162013
 

In this post, we consider the unfortunate plight of the Tohono O’odham people, whose ancestral lands now lie on either side of the Mexico-USA border.

How did this happen?

Following Mexico’s War of Independence (1810-1821), the rush was on to draw an accurate map of all of Mexico’s territory. Mexico’s boundaries following independence were very different to today. At that time, the major flows of migrants linking the USA to Mexico were from the USA to Mexico, the reverse of the direction of more recent flows, where millions of Mexicans have migrated north.

As this map of Mexico in 1824 shows, Mexico’s territory extended well to the north of its present-day limits.

Map of Mexico, 1824

Map of Mexico, 1824

At the end of the Mexican-American War (1846-1848) the 1848 Treaty of Guadalupe Hidalgo ceded over half of Mexico’s territory to the USA. A few years later, under the 1853 Gadsden Purchase (Treaty of La Mesilla), northern portions of Sonora and Chihuahua (shaded brown on the map below) were transferred to the USA.

Mexico 1853

Source: National Atlas of the United States (public domain)

With minor exceptions since, to take account of changes in the meanders of the Río Bravo (Grande), this established the current border between the two countries.

Impacts on the Tohono O’odham people

One of the immediate impacts of the Gadsden purchase was to split the lands of the Tohono O’odham people into two parts: one in present-day Arizona and the other in the Mexican state of Sonora, divided by the international border. The O’odham who reside in Mexico are often known as Sonoran O’odham.

There are an estimated 25,000 Tohono O’odham living today. Most are in Arizona, but about 1500 live in northern Sonora. In contrast to First Nations (aboriginal) groups living on the USA-Canada border who were allowed dual citizenship, the Tohono O’odham were not granted this right. For decades, this did not really matter, since the two groups of Tohono O’odham kept in regular contact for work, religious ceremonies and festivals, crossing the border when needed without any problem. Stricter border controls introduced in the 1980s, and much tightened since, have greatly reduced the number of Tohono O’odham able to travel freely. This is a particular problem for the Tohono O’odham in Sonora, most of whom were born in Mexico but lack sufficient documentation to acquire a passport.

Tohono o'odhum border protest

Tohono O’odham border protest

Since 2001, several attempts have been made in the USA to solve the “one people-two country” problem by granting U.S. citizenship to all registered members of the Tohono O’odham, regardless of their residence. So far, none has succeeded.

The largest community in the Tohono O’odham Nation (the Arizona section of Tohono O’odham lands) is Sells, which functions as the Nation’s capital. The Sonoran O’odham live in nine villages in Mexico, only five of which are offically recognized as O’odham by the Mexican government.

The border between the two areas is relatively unprotected compared to most other parts of the Mexico-USA border.

The Tohono O’odham Nation is often called upon to provide emergency assistance to undocumented workers (and drug traffickers) from south of the border who have underestimated the severe challenges of crossing this section of the harsh Sonora desert. Tribal officials regularly complain about the failure of the U.S. federal government to reimburse their expenses.

ABC News reports (Tohono O’odham Nation’s Harrowing Mexican-Border War) that the border “has made life a daily hell for a tribe of Native Americans” and that drug seizures on the Tohono O’odham Nation’s lands have increased sharply.

Want to read more?

  • The Sonoran O’odham lieutenant governor continues to help after 16 years
  • A story passed down from generation to generation  (Lisa Palacios, a Tohono O’odham anthropology student at the University of Arizona with relatives on both sides of the border shares her grandparents’ story)
Sep 092013
 

Prior to European contact in 1519, what did the Aztec people eat?

The basis of Aztec diet was corn (maize). They cultivated numerous varieties of corn, as well as many other crops including beans, amaranth and squash. Some dishes were seasoned with salt and chili peppers. This mix of items provided a balanced diet that had no significant vitamin or mineral deficiency.

In addition, the Aztec diet included tomatoes, limes, cashews, potatoes, sweet potatoes, peanuts, cacao (chocolate), wild fruits, cactus, mushrooms, fungi, honey, turkey, eggs, dog, duck, fish, the occasional deer, iguana, alongside insects such as grasshoppers. From the lake water, they scooped high protein algae (tecuitlatl), which was also used as a fertilizer.

How did they obtain their food?

The Mexica (who later became the Aztecs) faced a particular dilemma, largely of their own making. Mexica (Aztec) legend tells that they left their home Aztlán (location unproven) on a lengthy pilgrimage lasting hundreds of years. They were seeking a specific sign telling them where to found their new capital and ceremonial center. The sign was an eagle, perched on a cactus. Today, this unlikely combination, with the eagle now devouring a serpent, is a national symbol and appears on the national flag.

Artist's view of the Aztec capital Tenochititlan in the Valley of Mexico

Artist’s view of the Aztec capital Tenochititlan in the Valley of Mexico

The dilemma arose because they first saw this sign, and founded their new capital Tenochtitlan, on an island in the middle of a lake in central Mexico. An island linked by causeways to several places on the “mainland” might have had some advantages in terms of defense, but supplying the growing settlement with food and fresh water was more of a challenge.

Much of their food came from hunting and gathering, and some food was brought by long-distance trade, but space for farming, especially on the island, was at a premium.

The Aztecs solved their dilemma of how to supply food to their island capital by developing a sophisticated wetland farming system involving raised beds (chinampas) built in the lake (see image below). Originally these chinampas were free-floating but over time they became rooted to the lake floor. The chinampas were separated by narrow canals, barely wide enough for small boats or canoes.

Artist's representation of chinampa farming

Artist’s representation of chinampa farming

From an ecological perspective, these chinampas represented an extraordinary achievement, a food production system which proved to be one of the most environmentally sustainable and high-yielding farming systems anywhere on the planet!

Constructing and maintaining chinampas required a significant input of labor, but the yields per unit area could be very high indeed, especially since four harvests a year were possible for some crops. The system enabled fresh produce to be supplied to the city even during the region’s long dry season, whereas food availability from rain-fed agriculture was highly seasonal.

Artist's interpretation of chinampa construction (from Rojas 1995)

Artist’s interpretation of chinampa construction (from Rojas 1995)

The planting platforms or chinampas were built by hand, with alternate layers of mud, silt and vegetation piled onto a mesh of reeds or branches. Platforms, often but not necessarily rectangular, were about 10 meters wide and could be 100 meters or more in length. Willow trees were often planted on the edges of platforms to help stabilize them and provide shade for other plants and for the canals that separated the platforms. Interplanting crops was common, and polyculture was the norm. For many crops, multicropping (several crops in a single year) was possible.

Because the planting platforms were close to water, extremes of temperature were dampened, and the likelihood of frost damage to crops reduced. The root systems of crops had reliable access to fresh water (sub-irrigation). The canals provided a variety of habitats for fish. The mud from the bottom of canals was periodically dredged by hand and added to the platforms, supplying nutrients and preserving canal depth. Together with the regular addition of waste organic material (compost), this replenished the platforms and meant that their fertility was maintained over very long periods of time.

The system could even cope with polluted water, since the combination of constant filtration on the platforms, and aquatic weeds in the canals, partially removed most impurities from the water.

Where can chinampas be seen today?

Archaeologists have found vestiges of chinampas in several regions of Mexico, some dating back almost 3000 years.

Mexico’s best known chinampas today are those in Xochimilco on the south-eastern outskirts of Mexico City. Xochimilco is a Unesco World Heritage site, but faces heavy pressure from urban encroachment and highway construction. Xochimilco’s canals (with chinampas separating them) are some of the last surviving remnants of the large lake that occupied this valley when the Mexica founded Tenochititlan.

Xochimilco (Wikipedia; creative commons)

Xochimilco (Wikipedia; creative commons)

Visiting Xochimilco’s canals and market is a popular weekend excursion for Mexico City residents and tourists alike. However, the modern-day chinampas of Xochimilco are not the same as they would have been centuries ago. First, the total area of chinampas in Xochimilco is only a fraction of what once existed. Secondly, some of the chinampas have been abandoned, while on others chemical fertilizers and pesticides are often used. Thirdly, the area now has many exotic species, including introduced species of fish (such as African tilapia and Asian carp) that threaten native species. Numbers of the axolotl (a local salamander), a prized delicacy on Aztec dinner tables, are in sharp decline. Fourthly, the water table in this area fell dramatically during the last century as Mexico City sucked water from the underground aquifers causing local springs that helped supply Xochimilco to dry up completely. Rubble from the 1985 Mexico City earthquake was also dumped in Xochimilco’s canals.

Lakes in some other parts of Mexico were also used for chinampa farming. For example, in Jalisco, just west of Guadalajara, Magdalena Lake “was a prime source of food for the 60,000 or so people living close to the Guachimontones ceremonial site (settled before 350 BC) in Teuchitlán. They learned to construct chinampas, fixed mud beds in the lake, each measuring about 20 meters by 15 meters, which they planted with a variety of crops… The remains of hundreds of these highly productive islets are still visible today.” (Western Mexico: A Traveler’s Treasury, p 69)

Chinampa farming was one of the great agricultural developments in the Americas. It was, and still can be, an environmentally-sensitive and sustainable method of intensive wetland agriculture.

If you enjoyed this…

You might well enjoy my latest book: Mexican Kaleidoscope: myths, mysteries and mystique

Want to read more?

Related posts

The Tikul Plantation cacao project near Mérida

 Other  Comments Off on The Tikul Plantation cacao project near Mérida
Sep 072013
 

By way of contrast to the much-criticized, and now collapsed, Maya Biosana chocolate project, the Tikul Plantation, near Merida (Yucatán), is a well thought out cacao-growing project, with an educational component, being carried out by people who have decades of real experience with cacao. (Follow the link for a series of photos which gives a good idea of what is involved). Among the principles adapted by the Tikul project is biodynamic farming, which in this case means that “grafting is carried out when the moon is waxing and we harvest the pods when the moon is waning”.

Tikul-logoThat cacao plantation, begun in 2008 by Belgian firm Belcolade, already has 10 hectares of land planted with 10,000 cacao trees (planting density of 1000 cacao trees/hectare). In addition, “20 more hectares have been cleared and cedar and mahogany trees, amongst others, have been planted”. The developers of that project already have the 20,000 cacao trees to be grafted to complete the planting of this area. The shade plants that have been planted include 2000 yucca (cassava), 4000 banana plants,  10,000 cedar trees and 5000 mahogany trees. This means an average planting distance of “a cacao tree every 3 meters, a cedar tree every 6 meters and a mahogany tree every 12 meters”.

Belcolade produces high quality Belgian chocolate for distribution to over 100 countries. “Belcolade, the Real Belgian Chocolate, is produced solely in Belgium following a long tradition of craftsmanship, quality and refinement. It is made from carefully selected cocoa beans using production processes that have been perfected over time, thus assuring that Belcolade’s exquisite taste is in line with consumers’ expectations.”

Visitors to the Tikul Plantation are introduced to the importance of cacao to the Mayan culture in the “Cacao EcoMuseum” near the Plantation’s entrance.

The Cacao Ecomuseum is not without its critics. According to an article in the Yucatán Times, Becolade never received the appropriate permits from the National Institute for Anthropology and History (INAH) to build a structure in a protected zone. The article alleges that construction was only possible because certain INAH officials acted corruptly.

Meanwhile another enterprise Choco-Story, with local partners, (and which has no connection to Belcolade as we incorrectly claimed in an earlier version of this post) has come under heavy fire in the press in recent months because it also started to build Chocolate Museums on the archaeological zones of Chichen Itza and Uxmal. Construction of both has now been halted, with INAH officials ordering that the partially-completed structures be demolished. The latest reports are that the conflict at Uxmal has been resolved and that the Choco-Story museum at that site will open sometime next year.

Related posts:

Exclusive: Quintana Roo cacao megaproject collapses

 Other  Comments Off on Exclusive: Quintana Roo cacao megaproject collapses
Aug 302013
 

Following our critique of the Maya Biosana chocolate megaproject (Maya Biosana or Maya Bio-Insana? Chocolate megaproject in Quintana Roo),  a project which claimed it would plant four million cacao plants in four years, we have received additional information about developments in the Los Divorciados ejido where the project is based.

According to an insider, the project has now completely abandoned its plans for a massive cacao plantation. Jim Walsh, the former CEO of Maya Biosana, left the project in December 2012. Maya Biosana is now being managed by a Mexican firm AMSA (Agroindustrias Unidas de México, S.A. de CV) which is trying to convert the land into a profit-making venture producing corn and other grains.

Prior to the demise of the cacao megaproject, the organizers of Maya Biosana had released a short documentary detailing the project, and lauding its successful transformation of “a dwindling Mayan town” into a “now blossoming entrepreneurial city growing cacao fields and supporting their local community.” The film’s blurb claims that since the video was filmed, “the town has expanded and grown two-fold.”

According to recent visitors to Los Divorciados (the ejido in question—see map), this could not be further from the truth. They report that in summer 2013, the Maya Biosana project, which had started out by employing around 200 people, now had 40 workers at most. One member of the group that visited Maya Biosana estimates, “based on the number of motorcyles parked there when we were there”, that the real workforce at Maya Biosana may be even smaller, perhaps 20-25.

Google Earth image of southern Quintana Roo

Google Earth image of southern Quintana Roo

The 13-minute documentary, “Maya Biosana – The Rebirth of Mexican Cacao, A short documentary,” can still be seen (as of August 2013) via http://intentionalchocolate-blog.com/2013/07/17/maya-biosana-the-rebirth-of-mexican-cacao-a-short-documentary/ on the Intentional Chocolate blog. However, note that many of the images included in the video are most definitely NOT from the Maya Biosana area, or even from Quintana Roo.

The film’s badly-written blurb claims that it, “follows Maya Biosana, as it repositions Mexico as the largest organic cocoa producer in the world and bringing the sacred plant back to it’s birth home. Improving the quality of life in Mexico with it’s vision of collaboration, co-creation and intention by providing the local and surrounding communities with a new model of business utilizing their own proprietary Well Being index as the marker of change.”

According to the Intentional Chocolate blog, “The film won the best short Award in 2012 at the Awareness Festival”, a claim it has also proved impossible to verify.

The original Maya Biosana is no more, but will the new management of this area by AMSA prove to be any better for the local ejidatarios than the original megaproject fiasco? We certainly hope so, but only time will tell.

In the interim, we received an e-mail  a few weeks ago about a new megaproject underway in Avila Camacho, the next village to Los Divorciados (see map). Apparently, this megaproject is for plantations of exotic trees, which involves deforesting the jungle, extracting the wood, and planting a total of 6000 hectares with White Teak (Gmelina arborea, Spanish common name melina), a tropical hardwood, at the rate of 1000 hectares a year. So far, about 50 hectares have already been planted.  The correspondent writes that they “stole the land of the Mayan people, cheating about the pay of rent: the rent is $45US for a hectare for a year. They are destroying the jungle  and extracting the wood.” We have been unable to get independent verification of these claims as yet, but will continue attempting to do so.

Initially, some equipment from Maya Biosana was utilized on the Avila Camacho project, and our correspondent  claims that it is the same Mexican-associated company that is responsible, though we have not yet been able to confirm this.  According to a second source, the CEO of this project is Fernando Gonzalez, a “very good friend of Jim Walsh”, the former CEO of Maya Biosana, but there is no longer any direct connection between the two projects.

There may have been recent “developments” in this part of Mexico, but they certainly do not yet constitute any form of sustainable development.

Related posts:

Fresnillo, Mexico’s leading silver mining town

 Other  Comments Off on Fresnillo, Mexico’s leading silver mining town
Aug 242013
 

The city of Fresnillo, founded in the sixteenth century, is a place that most people speed by en route to somewhere else. Yet Fresnillo, in the state of Zacatecas, holds several surprises. It was once an important city on the colonial silver route (El Camino Real or Royal Road, the spine of the colonial road system in New Spain), and still boasts many fine buildings, including a lovely old theater and several churches.

fresnillo-plcFresnillo is still an important mining center today. Fresnillo plc, incorporated in the UK, is Mexico’s largest single silver mining company and the country’s second largest gold producer. It operates mines in three major mining zones in Mexico—Fresnillo (Zacatecas), Ciénega (Durango) and Herradura (Sonora)—and is actively developing or exploring numerous other sites.

Fresnillo became a major mining center from 1568, when a garrison of soldiers, complete with a fort, was installed in the town to help protect mule-trains carrying silver from Sombrerete (and the San Martín mine) further north and Zacatecas. By the mid-nineteenth century, Fresnillo’s own mines had serious flooding problems. Mine owners sent to England for experienced Cornish tin miners to come and help. The Cornishmen knew how to assemble and operate powerful steam engines, a novelty at that time in Mexico, and a reliable way to help drain deeper mine shafts.

Location of mining districts near Fresnillo. Credit: 321gold.com

Location of mining districts near Fresnillo. Credit: 321gold.com. Click to enlarge

George Ruxton, a nineteenth century traveler and author, described Fresnillo when he visited as “paltry” but “busy and frenzied” with 2500 miners hacking away at the nearby mountains. Ruxton thought the work ethic of the Cornish was superior to other English settlers and to the local Mexicans. He was especially impressed by how the miners had planted a beautiful garden, full of fruit-bearing trees, complete with a fountain and ornamental summerhouse.

Silver bars were regularly taken from Fresnillo to Zacatecas for smelting and subsequent stamping in the Zacatecas mint. The wagon-trains carrying silver bars, called conductas while under military protection, were frequently assaulted by large groups of bandits, up to several hundred strong.

Fresnillo also has significant artistic interest. Two very famous, yet very different, Mexican artists—musician Manuel M. Ponce and painter Francisco Goitia—were born in (or at least very near) the city in the same year, 1882.

The patron saint of silversmiths

From Fresnillo, it is only seven kilometers along a wide, well-paved road to Plateros, a place of pilgrimage. The baroque Santuario de Plateros was built at the end of the eighteenth century to be a suitable residence for the Santo Niño de Atocha and the Señor de Plateros (the patron saint of silversmiths). The fame of the Santo Niño de Antocha spread rapidly following a fight between two miners. One miner was sure he had killed the other but then prayed to this saint for his recovery. Lo and behold, his companion recovered! Ex-votos (retablos) tell the stories of the numerous “miraculous” interventions performed by the Santo Niño de Antocha to resolve all manner of problems in more recent years.

Source: Most of this post is based on chapter 20 of my “Western Mexico: A Traveler’s Treasury” (link is to Amazon’s “Look Inside” feature), also available as either a Kindle edition or Kobo ebook.

Other Mexican mining towns previously described on Geo-Mexico.com include:

New public transportation system should help rejuvenate Acapulco

 Other  Comments Off on New public transportation system should help rejuvenate Acapulco
Aug 222013
 

Several developments connected to public transportation are an integral part of Acapulco’s ongoing efforts to modernize and rejuvenate itself as a tourist destination.

ACAbús

Acapulco city authorities have been working hard to complete a new public rapid transit system called ACAbús in time for the next influx of sun-seeking winter tourists. The system represents an investment of around $140 million, roughly two-thirds for highway and transit stop refurbishment and one-third for operating equipment (vehicles and travel card machines).

acabus

ACAbús will connect the resort’s many tourism attractions and facilities. The main central axis is a 16-km (10 mile) long route from Las Cruces along Avenida Cuauhtémoc to Caleta, with 18 stops along the way. This portion will be confined solely to rapid transit articulated buses. Five trunk routes will supplement this central axis, each with a limited number of stops. The one of interest to most tourists will be that along the main Costera Miguel Alemán highway. When the system is complete, the number of bus routes in Acapulco will be reduced from about 220 to 120, but travel times will actually be greatly improved. Authorities estimate that the system should cut regular traffic by about 25%, and claim that everyone will benefit as it will lead to older vehicles being removed from the roads and a decrease in total emissions.

Caleta Beach, Acapulco. Photo: Vanguardia/El Universal

Caleta Beach, Acapulco. Photo: Vanguardia/El Universal

Maribús

At a later stage, the ACAbús system will be complemented by a maritime equivalent Maribús. This water taxi system will operate over about 3 kilometers of coast and have six access wharves: Acapulco Diamante, Puerto Marqués, Icacos, The Maritime Terminal (Terminal Marítima), Playa Manzanillo and Caleta. It would cut some transfer times in half. For example, it is estimated that the Golden Zone-Zona Diamante trip would take about 16 minutes.

Acabici

A bike-sharing system, Acabici, is also planned. This would initially have 450 bikes distributed between 30 “stations”.

The Scenic Alternative

Drivers of private vehicles in Acapulco will benefit from construction of an alternative route to the slow and congested Scenic Highway (Carretera Escénica) that links the resort’s airport to its Zona Dorada (Golden Zone) hotels and main beach, Playa Icacos, via the rapidly growing upscale Acapulco Diamante district. Acapulco Diamante is the newest of Acapulco’s three major tourist zones, known for its exclusive homes, stores, hotels and resorts. ,

The 270-million-dollar project, just begun by Mexican firm ICA, and dubbed Avenida Escénica (Scenic Alternative), is a 5 mile (8 km) toll highway that includes a tunnel 2 miles (3.3 km) long. It will slash travel time to a few minutes, instead of the hour or more sometimes required at present when traffic is heavy. This is the state of Guerrero’s largest infrastructure project for several decades. It will cost around $270 million, involve 1,000 workers and will take two years to complete. When the new link is opened, the tunnel will be the longest highway tunnel anywhere in Mexico.

Related posts:

Foreign runners help preserve an ancient Tarahumara tradition

 Other  Comments Off on Foreign runners help preserve an ancient Tarahumara tradition
Jul 262013
 

While generally referred to in English as the Tarahumara, the people’s own name for themselves is Raramuri“, literally “the light‑footed ones” or “footrunners”. The Tarahumara live in the Copper Canyon region of Mexico and are renowned for their long distance running exploits across some of the world’s most inhospitable terrain. As “modern” life encroaches on the Tarahumara and begins to change their traditional way of life, bringing problems like environmental damage, loss of native lands, and narco-trafficking, will they manage to preserve their ancient traditions such as long distance foot races?

As his contribution towards helping the Tarahumara preserve their foot races, a few years ago, Micah True, an American better known as ultramarathon runner “Caballo Blanco”, who regularly visited the town of Urique in the Copper Canyon, organized a Copper Canyon Ultramarathon. True, who died in 2012, was featured in Christopher McDougall’s book Born to Run. As True hoped, the Copper Canyon Ultramarathon has become an annual event, now known as the Ultra Caballo Blanco that helps maintain the running heritage aspect of Tarahumara culture. The event is usually held in March. Completing the race requires running an estimated 50 miles (80 km) of tracks, trails and and dirt roads, which start and finish in the main plaza of the town of Urique. The event has become the focal point for a cultural celebration.

This short 9-minute Youtube video–Super Athletes of the Sierra Madre–describes the 2009 Copper Canyon Ultramarathon.

Ini additional to some great shots of the rugged scenery and the race itself, the video includes brief references to the history of the area, and details some of the current pressures on the Tarahumara way of life. The Copper Canyon ultramarathon is aptly labelled “the greatest race the world has never seen”. The race is not sponsored and there are no huge monetary prizes for the race winners. Donations are accepted to offset the cost of prizes. Anyone who completes the course within the 14-hour time limit is awarded a voucher for 500 lb of corn. Foreign athletes who compete alongside the Tarahumara in this event donate their corn and prizes back to the community. The event attracts more than 200 runners, with about half of them normally completing the course.

Route of Ultra Caballo Blanco

Route of Ultra Caballo Blanco

This image of the course (from Ultra Caballo Blanco) gives some idea of the terrain in which this race is run. The race starts with a 21+ mile loop up-river from Urique, followed by another 18+ mile loop down-river, and then a final loop (up to the Tarahumara village of Guadalupe Coronado and back down to Urique) adding another 10+ miles to the total distance.

The 12th Annual Ultra Caballo Blanco will take place on March, 2, 2014.

Related posts:

The volcanic calderas of Mexico’s Volcanic Axis

 Maps, Other  Comments Off on The volcanic calderas of Mexico’s Volcanic Axis
Jul 082013
 

There is still lots of work needed to fully unravel the geological secrets of Mexico’s Volcanic Axis which crosses the country between latitudes 19̊ and 21̊ North. Unlike most volcanic belts elsewhere in the world, this one does not appear at first sight to correspond to any plate boundary. Another of the mysteries of this volcanic region, where igneous upheavals have shaped the landscape for several million years, is the relative dearth of calderas, the “super craters” formed either by collapse or by giant explosions.

While the toponym La Caldera is used fairly commonly in Mexico’s volcanic regions for a volcano or volcanic crater, geologists restrict the term to the much larger landform that results from the collapse or super-explosion of a volcano. Even so, there is still some debate among specialists as to the precise definition of the term caldera.

Geologists have proposed a threefold division of the Volcanic Axis, based on differences in the volcanic landforms, in terms of their type, structure, age, morphology and chemistry.

volcanic-axis

The western sector (see map below) extends from the western coast of Mexico to Lake Chapala (including the lake basin). The central sector covers the area between Lake Chapala and the twin volcanoes of Popocatepetl and Ixtaccihuatl, close to Mexico City. The eastern sector includes these twin volcanoes and extends as far as Mexico’s Gulf Coast.

Mexico's Volcanic Axis (Fig 2.2 of Geo-Mexico, the geography and dynamics of modern Mexico. All rights reserved.

Mexico’s Volcanic Axis (Fig 2.2 of Geo-Mexico, the geography and dynamics of modern Mexico). All rights reserved.

The only caldera recognized in the western section is that of La Primavera, the forested area west of Guadalajara, whose formation we considered in

In the central and eastern sections of the Volcanic Axis, several other calderas have been recognized. They include (from west to east):

  • Los Azufres
  • Amealco
  • Mazahua
  • Huichapan
  • Los Humeros
  • Las Cumbres

Los Azufres

The precise origin of the Los Azufres caldera, in Michoacán, is still debated. The caldera is the site of an important geothermal power station with an installed capacity of 188 MW. (Mexico is the world’s fourth largest producer of geothermal energy, after USA, the Philippines and Indonesia.) The geothermal heat in this area is also used to heat the cabins in a local campground, and to dry wood and process fruit.

Amealco

The Amealco caldera is in the central part of the Mexican Volcanic Axis, midway between the towns of San Juan del Río and Maravatio. It dates from Pliocene times and has been heavily eroded since. It is about 11 km wide and 400 m deep and was the origin of great sheets of pyroclastic flow deposits (ignimbrites) with a total volume of around 500 cubic km.

Mazahua

Mazahua is a collapse caldera, 8 km in width, near the village of San Felipe del Progreso in the western part of the State of Mexico.

Huichapan

The Donguinyó-Huichapan caldera complex is 10 km in diameter and in the central sector of the Volcanic Axis. It appears to be two overlapping calderas, dating from around 5 million and 4.2 million years ago respectively. The rocks from the older caldera are intermediate to basic in composition, while those from the more recent caldera are acidic (high silica) rhyolites.

Los Humeros

The Los Humeros caldera is in the state of Puebla, close to its border with Veracruz. It is 55 km west-north-west of the city of Xalapa (Veracruz), relatively close to Teziutlán (Puebla). The main caldera (summit elevation 3150 m) is about 400 m deep and roughly oval in shape, with a diameter which varies from 15 to 21 km. It was formed about 460,000 years ago by the collapse of the underground magma chamber. Prior to collapse, lava emitted from this vent had covered 3500 square km with ignimbrite. Later, two smaller calderas formed nearby, with ages of about 100,000 years (Los Potreros caldera) and 30,000 years (El Xalapazco) respectively. Volcanic activity in this area has been utilized to produce generate geothermal power (installed capacity: 40 megawatts).

Las Cumbres

The easternmost caldera in Mexico is Las Cumbres, 15 km north of Pico de Orizaba, Mexico’s highest volcano, and close to the state boundary between Puebla and Veracruz. The Las Cumbres caldera was originally believed to be an explosion super-crater, but geologists now think that it was created due to the partial collapse of the eastern flank of the original volcano, between 40,000 and 350,000 years ago. The collapse of the side of Las Cumbres produced a huge debris avalanche (total volume estimated at 80 cubic km, which extended up to 120 km in the direction of the Gulf of Mexico.

Lake Alchichica

According to Dra. Esperanza Yarza de la Torre in Volcanes de México (UNAM; 1984), Lake Alchichica in the Oriental Basin near Puebla occupies another caldera. The basin has several shallow lakes, known locally as axalpazcos (“sandy basin with water” in the indigenous Nahuatl language). These occupy shallow craters (or in one case a caldera) and are largely sustained by ground water. The largest of the lakes, in a caldera, is Lake Alchichica, which has a diameter of 1888 meters, an area of 1.81 square km, and lies at an elevation of 2320 meters above sea level. The rim of the caldera rises 100 m above the lake level. The lake is used for irrigation. This lake is claimed to be Mexico’s deepest natural lake with a maximum depth of 64 meters, and a mean depth of 38.6 meters.

Main sources:

  • Gerardo J. Aguirre-Díaz & Fred W. McDowell. 1999. Volcanic evolution of the Amealco caldera, central Mexico. United States Geological Society. Special Paper 334.
  • Esperanza Yarza de la Torre. 1984. Volcanes de México. UNAM.

Want to read more?

  • Use the site’s tag system (left hand side of the page) to find lots more posts about Mexico’s volcanoes, geology and landforms.

What are the 10 main pressures threatening the Primavera Forest in Jalisco?

 Other  Comments Off on What are the 10 main pressures threatening the Primavera Forest in Jalisco?
Jun 222013
 

A 1988 Management plan for the Primavera Forest (Plan de Manejo Bosque La Primavera), published by the University of Guadalajara, included a detailed list of the then-existing pressures on the forest.

Sadly, not much has changed since then, and almost all the sources of pressure mentioned in that study still apply today.

The Primavera Forest. Credit: Semarnat, 2003

The Primavera Forest. Credit: Semarnat, 2003

The management plan argues that the key areas (see map) where careful management is essential include:

  • Cerro San Miguel and Cerro Las Planillas, the highest elevations in the area
  • The environs of the tourist spa of Río Caliente (this spa is now closed)
  • Mesa de Nejahuete, in the center of the volcanic caldera, and
  • Mesa del León, considered an important habitat, primarily for fauna

The plan identifies the following sources of concern (note that this list is in no particular order, and certainly not in order of highest pressure to lowest):

1. Tourism. Poorly planned recreation areas, such as autodromes and spas. Issues resulting from this source of concern include pollution, waste disposal, soil erosion, landscape degradation, habitat change, reduced fauna and, switching to a human focus, delinquency. Motorcycles and trail bikes are a particular problem because of the associated noise pollution, annoyance and risk to other visitors, habitat destruction, the displacement of fauna and often lead to accelerated soil erosion.

2. Ejidos. Any expansion of neighboring ejidos means more homes, deforestation and landscape alteration.

3. Quarrying. The quarrying of local rocks such as pumice or river deposits, as well as a number of abandoned quarries can result in habitat destruction, erosion, forest degradation, accelerated mass movements (landslides, rockfalls), posing a risk to infrastructure, access routes and the potential pollution of ground water.

4. Hunting. Hunters leave spent cartridges that can pollute the soil, as well as wounded and abandoned animals. Larger fauna have become progressively more scarce. In addition, the presence of individuals carrying firearms poses a security threat.

5. Cultivation and Overgrazing. Increased cultivation (primarily for sugar cane, corn and beans) has gradually nibbled away at the edges of the forest, with the clearance method of slash and burn being a particular problem since it greatly raises the risk of wildfires, soil degradation and deforestation. As the number of access routes increases, it is easier for local farmers to graze livestock in the forest, reducing the health of the  grassland, and leading to a relative abundance of unwanted plants and weeds, accelerated soil erosion and the possible contamination of water sources.

6. Deforestation. Deforestation is also a pressure on the forest, in which the cutting of woodland for fuel (including bonfires) and for firebreaks, leads to changes in habitat and soil use, with the secondary effects of increased erosion, reduced ground water recharge and varying degrees of secondary forest succession.

7. Geothermal Power. The potential development of some areas for geothermal power by the Federal Electricity Commission (CFE) has already involved the opening of access routes and would lead to noise contamination (with adverse effects on fauna) and possible pollution of ground water, air and soil, as well as deforested hillsides. The loss of vegetation cover would trigger accelerated erosion, and habitat destruction, further reducing water quality. Access routes attract other “users” such as those seeking to quarry local rocks or clear land for farming.

8. Settlements. Settlements and subdivisions have also encroached on the forest. Some are irregular/illegal settlements, but others are private homes and clubs. Regardless of economic level, these settlements result in a decrease in vegetation and the elimination of the soil’s litter layer, leading to soil compaction, lowered infiltration rates, and nutrient-depleted soils, as well as increased pollution and the gradual elimination of native fauna

9 Wildfires. Wildfires, such as that in 2012, destroy vegetation and cause a general degradation of the woodland. They can result in the accelerated degradation of soil, water and vegetation, leading to significant changes to soil structure, as well as increased runoff and reduced groundwater recharge.

10. Inadequate regulations. The problems faced by the Primavera Forest are compounded because the relevant local authorities have shown little interest in ensuring adequate regulations, supervision and enforcement.

Many of these ten major pressures are closely interrelated. Despite the good intentions back in 1988, it is clear now, with the benefit of hindsight, that the 1988 management plan did not achieve very much. Hopefully, in the not too distant future, and as the Primavera Forest gains international status as a possible Geo-Park, a more comprehensive and effective management plan can be devised and implemented.

Related posts

Jun 172013
 

Today (June 17) is the UN’s “World Day to Combat Desertification and Drought.”

How does Mexico stand right now in relation to drought? Drought currently affects about 40% of the country (see map). Some parts of northern Mexico have been experiencing a severe drought for almost three years. The worst affected states are Chihuahua, Nuevo León, Coahuila, Durango, Zacatecas, Tamaulipas, San Luis Potosí, together with parts of Querétaro, Aguascalientes, Sinaloa and Sonora.

Areas suffering from short-term and long-term drought, April 2013. Click map to enlarge.

Areas suffering from short-term and long-term drought, April 2013. Click map to enlarge.

Last year’s rains did reduce the area suffering from drought from 55.9% of Mexico to 38.6%, but that figure has risen to well over 40% this year.

In 2012, and earlier this year, many major cities, including Mexico City and Guadalajara, had to enforce water rationing for several months, supplying water to individual households only on certain days each week.

As this year’s rainy season begins in central Mexico, dozens of reservoirs are at critically low levels. Reservoirs in Coahuila average only 10% of their capacity, only slightly better than those in San Luis Potosí (12%). Even the populous state of Jalisco faces problems; its reservoirs are at 27% of capacity.

Things are unlikely to improve any time soon since the current long range forecast for this rainy season is for 30% less precipitation than the long term average.

The drought has already caused significant losses to farmers. Livestock owners in northern Mexico have culled herds and are having to buy in supplies of water to top up their private wells. Rainfall so far in 2013 has been well below long-term averages in central and northern Mexico, which may limit the region’s productivity of rain-fed agriculture (mostly wheat, corn, sorghum and other fodder crops).

Authorities at the three levels of government (federal, state and municipal) in many regions are calling for urgent concerted action to help farmers as well as to ensure supplies of drinking water to towns, cities and rural communities.

In Tamaulipas, at least 60 rural communities are confronting a critical water shortage. Farming representatives argue that while the National Water Commission (Conagua) has guaranteed water supply for urban areas, many rural areas remain vulnerable, and lack both potable water and food support on account of harvest failures due to lack of rain. In Tamaulipas alone, drought has affected 22,000 hectares and killed 800 head of livestock in the past year.

In Nuevo León, citrus farmers fear that their harvest, which begins in October will be 40-50% lower than usual. The state government is supporting a 35-million-dollar support program for farmers which includes supplying water by truck, rehabilitating deep wells and offering subsidies for water that farmers buy direct from private suppliers. The spring harvest in Nuevo León was lost completely, and a “severe drought emergency” has been declared in at least 14 municiapliites (Allende, Cadereyta, Dr. Arroyo, General Terán, Higueras, Juárez, Lampazos, Rayones, Sabinas Hidalgo, Santa Catarina, Villaldama, Hidalgo, García and Mina) allowing them access to federal aid.

Besides loss of livestock and crops, the prolonged drought in Mexico is having many other effects, which include:

Migration – In Durango state, more than 1500 Mennonites have left their homes due to the drought, according to Mennonite leader Enrique Peter Klassen, with some of the migrants headed for neighboring state of Chihuahua and others emigrating to Canada.

Wildfires – The first four months of 2013 was the third worst season for forest fires (more than 7000 were reported) in recent history, after 1996 and 2011. According to the National Forestry Commission (Conafor), wildfires ravaged 170,000 hectares, mostly grassland and wooded pastureland, in the first four months of this year. The states which suffered most were Oaxaca (21,000 ha), Baja California Sur (16,000), Guerrero (13,857) and Jalisco (13,697).

Lake Chapala – In the past two years, the level of Mexico’s largest natural lake, Lake Chapala, has once again fallen to crisis levels. (The lake has a long history of fluctuations in level, discussed in detail in our Geo-Mexico, the geography and dynamics of modern Mexico). The lake currently holds 2.84 million cubic meters of water, about 36% of its capacity. Its level has fallen 1.43 meters since last year’s rainy season, the lake’s most dramatic decline for 20 years. The rainy seasons in 2011 and 2012 raised the lake level by only 24 cm and 50 cm respectively, so unless this year’s rains are exceptionally heavy, the lake will continue to drop.

Previous posts related to drought:

How was the Primavera Forest caldera in Jalisco formed?

 Other  Comments Off on How was the Primavera Forest caldera in Jalisco formed?
Jun 102013
 

In a previous post, we described the considerable geotourism potential of the Primavera Forest near Guadalajara:

In this post, we take a closer look at how this unusual area was formed.

Stages 1 and 2 (see diagram):

140,000 BP. The magma chamber beneath the surface began to fill with magma (molten rock underground) and grow in size.

By about 120,000 BP, several lava flows and domes had formed, made primarily of rhyolite, a silica-rich (“acid”) igneous rock. After each eruption, the magma level underground would subside for a period of time before pressure built up again towards the next eruption.

Formation of a caldera

Fig. 4 of Bullard (1962) “Volcanoes in history, in theory, in eruption”. Based on van Bemmelen (1929) and Williams (1941)

Stages 3 and 4

So much pressure had built up by about 95,000 BP that there was a huge explosion, sending 20 cubic kilometers (4.8 cubic miles) of rock and ashes high into the sky. The explosion covered 700 square kilometers (270 square miles) with volcanic materials, known today as the Tala tuff (tuff is the geological term for consolidated ash). This massive explosion caused the upper part of the magma chamber to collapse, leaving a caldera that was 11 kilometers (6.8 miles) wide. The Tala tuff includes large quantities of pumice, a light and porous volcanic rock formed when a gas-rich froth of glassy lava solidifies rapidly.

This caldera filled with water, creating a lake.

Stage 5

This stage began shortly afterwards when a series of ring domes were erupted around the edge of the caldera as the magma deep below the surface started to push upwards again, eventually forming small islands in the lake. These eruptions formed more pumice, blocks of which would break off and start to float across the lake as they gradually sank to the lake floor.

A further series of eruptions in about 75,000 BP led to a second series of ring domes. A combination of tectonic uplift and sedimentation had filled the lake in by about this time.

More volcanic domes have been created at approximately 30,000 year intervals since, in about 60,000 BP and about 30,000 BP; these domes were almost all on the southern and eastern margins of the caldera, and include the lava domes of El Colli and El Tajo on the outskirts of Guadalajara.

Many geologists appear quietly confident that lava and ash eruptions in La Primavera are a thing of the past. They consider that the Primavera Forest’s fumaroles, hot river and hot waterfall represent the last vestiges of vulcanism and are no cause for alarm. On the other hand, others, including Gail Mahood who has studied this area far more than most, warn that hazard monitoring is justified in the case of La Primavera given its proximity to a major city and bearing in mind that any future eruption would be likely to occur on the southern and/or eastern side of the caldera.

The La Primavera Forest is only one of several calderas in Mexico’s Volcanic Axis.

If you prefer a short 9 minute video animation of how the area was formed, try this excellent YouTube video: “The Exciting Geology of Bosque La Primavera“, produced by geologist Barbara Dye during her stint as a Peace Corps volunteer in Mexico.

References:

  • Mahood G. A. 1980. Geological evolution of a Pleistocene rhyolitic center – Sierra La Primavera, Jalisco, Mexico. Journal of Volcanology and Geothermal Research, 8: 199-230.
  • Mahood, G.A. 1981. A summary of the geology and petrology of the Sierra La Primavera, Jalisco, Mexico. Journal of Geophysical Research, Volume 86.
  • Dye, Barbara. 2013. “La Apasionante Geología del Área de Protección de Flora y Fauna La Primavera”.

Related posts:

 

Mexico’s geomorphosites: the Primavera Forest, Guadalajara, Jalisco

 Other  Comments Off on Mexico’s geomorphosites: the Primavera Forest, Guadalajara, Jalisco
Jun 012013
 

The Primavera Forest (aka Bosque de la Primavera, Sierra de la Primavera) is a volcanic region located immediately west of Mexico’s second-largest city, Guadalajara. The Primavera Forest occupies an ancient volcanic caldera, where the last eruptions are thought to have been about 30,000 years ago. The Primavera is a wilderness area of pine and oak woodland, with hot-water rivers, nature-trails and thermal spas. The park, which is about 30 km (19 mi) across (see map), serves as the lungs of Guadalajara and is popular, especially on weekends, for activities such as picnics, birdwatching, hiking, climbing, mountain biking and motocross.

The Primavera Forest. Credit: Semarnat, 2003

Basic map of the Primavera Forest. The distance between Tala and Guadalajara is about 35 km (22 miles). Credit: Semarnat, 2003

The main geographic and geological attractions of the Primavera Forest include:

Scenery, views, flora and fauna

The average elevation of the Primavera Forest is about 2200 m above sea level, rising to 2270 m (7447 ft) towards the eastern edge of the forest which overlooks the city of Guadalajara. The three main summits are El Pedernal, San Miguel and Las Planillas. There is easy access to the 30,000 ha of protected natural area from various points, including the town of Tala and from Highway 15 (the main Guadalajara-Tepic highway) which skirts the northern edge of the Primavera. Agriculture and settlement have made incursions into the edges of the park, with land cleared for subdivisions or for fields of sugarcane and agave (for tequila). A major wildfire raged through parts of the forest in 2012.

The park is home to about 1000 different plant species as well as 137 different birds and at least 106 terrestrial animals, including deer, puma, opossums (tlacuaches), armadillos and rabbits.

Hot springs

Thermal springs are common throughout the Volcanic Axis of Mexico, and the hot river and many hot springs in the Primavera Forest are a legacy of its volcanic history. Río Caliente, the main developed spa in the Primavera Forest, famous for several decades as one of the country’s top vegetarian and health spas, closed in 2011, following some years of uncertainty regarding its land tenure status and increasing security concerns because of its relatively remote location.

The hot springs in the park have been subject to numerous exploratory studies by the Federal Electricity Commission (CFE) which considers the park a potential source of geothermal power. The CFE drilled a dozen wells in the 1980s, finding that six of them offered sufficient flow for power production. The CFE believes the park could support at least three 25 megawatt geothermal plants. Drilling was suspended between 1989 and 1994 when the Jalisco state government ordered the CFE to carry out environmental restoration to areas damaged by drilling activities, and the plants have not yet been approved.

Pumice deposits

As veteran explorer-author John Pint points out in “A geopark in my back yard?”, the Primavera Forest is well known to geologists for its giant blocks of pumice, up to several meters across, which are among the largest found anywhere in the world. One of the best locations for seeing these is in the 50-meter-high walls of the Río Seco arroyo on the northern edge of the park, on the outskirts of the small community of Pinar de la Venta. The cliff face has a thick band of pumice overlying numerous thin layers of lake sediments. The pumice blocks are highly vesicular (full of holes) and therefore surprisingly light for their size.

Obsidian deposits

The Primavera Forest is also well known to geologists (and archaeologists) because it has significant amounts of obsidian, a hard, glassy, usually black rock. Obsidian is easy to find (often in big chunks) in several parts of the park. The obsidian formed when blocks of hot lava, still molten, rained into the cold waters of a lake, cooling instantaneously. When fractured, pieces of obsidian acquire very, very sharp edges. Even today, some surgeons still prefer obsidian scalpel blades, recognizing that they are far sharper than those made from even the best steel.

Obsidian was in great demand in precolonial times for use as mirrors, arrowheads and knives, as well as jewelry:

“Among the people to prize obsidian were the residents of Iztépete (often spelt Ixtépete), “hill of obsidian or knife blades”, located just outside the eastern edge of La Primavera. This small, largely forgotten, and poorly-signed archaeological site in a southern suburb of Guadalajara is within a stone’s throw of the city’s periférico (ring-road).”

“Large, angular chunks of obsidian litter the slopes of Cerro Colli, the hill rising behind the 6-meter-high pyramid, which conceals at least five earlier pyramids, each superimposed over the one before. Ceramics found here suggest that occupation stretches back at least to the fifth century, but little is known about the people who built this site.”  [Quotes are from the recently published 4th edition of the author’s “Western Mexico, A Traveler’s Treasury”]

Obsidian is found throughout this region, and while usually black in color, it can also be found in a range of hues, including red and even rainbow patterns. Not far from the western edge of Primavera, at the foot of a steep-sided knoll called El Picacho is El Pedernal, reputed to be the largest obsidian deposit in the world, covering 4 square kilometers, from which an astonishing 40,000 cubic meters of rock have been extracted over the centuries. Sophisticated chemical techniques have shown that El Pedernal obsidian was widely used in Mesoamerica, finding its way as far north as California and as far south as Oaxaca!

The pre-Columbian obsidian jewelry from this region, consisting of very thin wafers of rock, is unique to this area, and clearly the work of highly skilled specialist craftsmen. One particularly fine example (now in the museum in Tala) is a necklace fashioned out of wafer-thin obsidian carvings of human figures, each pierced by a tiny hole. In the absence of metal tools, the patience and dexterity required to have made these is truly amazing.

The art of obsidian carving has not been lost. Skilled artisans in Navajas, another nearby village, continue to this day to chip and shape chunks of obsidian into spheres, chess boards and beautiful works of art, often representing animals.

In future posts we will consider the formation of the La Primavera Forest in more detail, and also look at the extent to which the pressures resulting from its proximity to the city of Guadalajara threaten the park’s long-term health.

Want to read more?

John Pint is one of those spearheading the proposal of seeking UNESCO designation for La Primavera as a GeoPark.

U.S. Peace Corps Volunteer and geologist Barbara Dye has written a beautifully-illustrated  72-page guide (in Spanish) to the geology of the Primavera Forest: “La Apasionante Geología del Área de Protección de Flora y Fauna La Primavera”.

Related posts:

Tultepec: the fireworks capital of Mexico

 Other  Comments Off on Tultepec: the fireworks capital of Mexico
May 252013
 

No Mexican festival is complete without a dazzling display of fireworks. Gunpowder was unknown in Mexico prior to the arrival of the Spaniards, but its use in fireworks quickly caught on. Firework production is usually a small-scale family affair, and there are workshops specializing in fireworks throughout the country. The undisputed  capital of fireworks is Tultepec, a settlement with 130,000 inhabitants on the northern edge of Mexico City. Generations of expertise have led to Tultepec becoming the source for about half of all the fireworks manufactured in Mexico.

  • Tultepec: Mexico’s Skyrocket Central from The Southwest Center, by Dan Duncan (26-min video)

To celebrate its skilled pyrotechnic craftsmen, Tultepec hosts a 9-day National Pyrotechnic Festival in March each year. The festival, first held in 1989, includes competitions for the best castillos (castles) and toros (bulls) or toritos (little bulls). Castillos can be several stories high, with an intricate interconnected network of sections representing saints, animals, flowers, birds and other designs. Toritos, first recorded in the nineteenth century, are bull-shaped frames placed over the heads of willing volunteers. As the firecrackers explode, the toritos are carried through the streets or dance in imitation of a bull fight as young bystanders pretend to be matadors. About 250 toritos ran the streets of Tultepec in 2013.

The manufacturing of fireworks is tightly controlled by the military, but accidents are all too common and often serious, sometimes fatal. About 2,000 people work directly in the industry, in some 300 small workshops. The creativity of these coheteros (fireworks makers) knows few limits. For example, mid-way through this video, look for the small, firework-propelled vehicle that goes alternately forwards, then backwards, entirely on its own once its fuse has been ignited.

Want to read more?

  • Mexico’s Fireworks Capital by Matthew Power