8MB PDF - Association for Mexican Cave Studies

of the Dragon River, high over Infiernillo.We knew that waterfalls pouring in from theceiling must hold the key to progress tohigher entrances. At one cascade I was ableto climb an eroded column to gain access toan upper stream passage that I followed forabout 80 meters. Another waterfall requiredan overhung traverse to get into. After afew more cascades, I decided it would bebetter to return with a little climbinggear. Being the worse for wear, we electednot to survey, since we knew we would nowbe coming back to the beautiful DragonRiver another time. Five hours later wetrudged up to the fieldhouse to be greetedby a roaring fire and all our friends, whohad kindly stayed up late awaiting ourreturn. Great way to end a fine trip.PURIFlCACION 1987Catorce espeleologos del PEP pasaron diez dfas en el Campamento V dentrodel Sistema Purificacion en Tamaulipas, en marzo de 1987. Se encontraronmuchos pasajes nuevos, incluyendo el Midnight River, el cual se extiende alsur mas lejos que ningUn otro pasaje en el sistema. Tambien se descubrio elEntronque de los Tetricos, un pasaje de bajo nivel y con un sistema largo delaberintos. En total, se topografiaron 6341 metros de pasajes nuevos, haciendodel Sistema Purificacion 67,599 metros de largo, la caverna mas larga deMexico.Mountain House Freeze Dried Foods gives substantial discounts to expeditions placinglarge orders. PEP wishes to extend its sincere thanks to Mountain House for thisvaulable assistance. ,I~~ , .I,Y'I ! ..!88