Descripción: UNESCO, MAB Biosphere Reserves Directory.
«El Triunfo is situated in the mountains of Sierra Madre de Chiapas, south of the Chiapas State. The terrain is generally steep and mountainous. The reserve is constituted as the limit between two of the largest hydrological regions of the state; the Pacific coast and the Grijalva-Usumacinta River. As a primary Pleistocene refuge, its location in the mountains of the Sierra Madre de Chiapas, it is considered an endemic area for different groups of plants and animals. El Triunfo is the most diverse evergreen cloud forest in Mexico, and one of the most important sites for bird migration.»
