Ajo - Cabeza Prieta National Wildlife Refuge

The Cabeza Prieta National Wildlife Refuge covers 860,000 acres along the Mexican border, southwest of Ajo. Established in 1939, the refuge protects plants and animals indigenous to the area. Cabeza Prieta is Spanish for "Black Head", a reference to one of the peaks in the western corner.

Cabeza Prieta has seven rugged mountain ranges and shares a portion of its border with Sonora, Mexico. Hiking, photography, wildlife observation, and primitive camping are the main activities.