Description:
Taco, Theo, Scott, Michelle, Andrew and others from the Alberta Speleological Society did an expedition here to map Aire Fresco and other new subterranean systems. The local mayor wanted to buy our underground water system maps. Also there were numerous run-ins with Zapatista Rebels who simply could not understand why people would want to explore cave systems. Some of the pitches here were well over a hundred feet.
http://www.psc-cavers.org/articles/Chiapas98.html
http://www.utexas.edu/utpress/excerpts/exvoopop.html
The Soconusco is located within the strip of flat-lying land that lies along the western edge of Chiapas, Mexico and adjacent Guatemala (fig. 1.1). This corridor begins on the north at the Isthmus of Tehuantepec, a low-lying, narrow waist of the North American continent in Oaxaca, Mexico. It angles southeastward, toward Central America, widening from approximately 25 km in the vicinity of the town of Tonalá to nearly 50 km at its southeastern end.