Death Coral Caver annual magazine of the Proyecto Espeleológico Purificación

This magazine, with issues averaging 36 pages in length, covers the Proyecto Espeleológico Purificación’s area in Tamaulipas and San Luis Potosí, in the Sierra Madre Oriental northwest of Cd. Victoria. Among caves in the area is Sistema Purificación, longest cave in Mexico. Exploration reports, black-and-white photos, numerous cave maps.