Its geography includes the Sierra de Anguangeo and other peaks such as Don Felix, Chino, Colorado, Prieto and Seco. The entire area is part of the Trans-Mexican Volcanic Belt. The two principal rivers are the Zarco and the El Grande, supplemented by a number of fresh water springs such as the San Luis and the Ojo de Agua de Martinillos. It has a cold climate with rains in the summer, with average temperatures ranging from 7.8C to 23.4C. Ecosystems are primarily forests of conifers such as oyamel, pine and juniper with some cedar. Wildlife includes cacomixtle, rabbits, weasels, coyotes and various birds.