Most of the municipality is covered in forest of one type or another, and these forests are its main natural resource. These forests have been having problems in recent years between insect and parasitic plant infestations and logging. The infestations have been more severe than usual because of drought conditions weakening trees. While there are strict environmental laws for the area as part of the biosphere reserve, enforcement is spotty. The forests of this and neighboring municipalities have attracting illegal logging from those outside the area. Pinal de Amoles is one of the Sierra Gorda municipalities where this problem is the most serious.