You can't protect the enviropment without protect the people who live there.

The Chichinautzin Biological Corridor, created in 1988, connects the Lagunas de Zempoala and El Tepozteco National Parks in the Sierra Norte of Mexico. Covering 37,000 hectares, the corridor forms a natural green lung between two major cities: Mexico City and Cuernavaca. The rich biodiversity and endemism in the corridor includes a number of endangered species.

The biological corridor currently faces a number of threats from forest fires, illegal logging and development projects.