The Rio Grand River Basin
The 118 river miles that form the southern park boundary include the spectacular canyons of Santa Elena, Mariscal, and Boquillas. The Rio Grande, meandering through this portion of the Chihuahuan Desert, has cut deep canyons with nearly vertical walls through three uplifts comprised primarily of limestone. Throughout the open desert areas, the highly productive Rio Grande riparian zone includes various plant and animal species and significant cultural resources. These riparian corridors extend into the desert along creeks and arroyos.

Permit Information
Free permits are required for overnight stays in the backcountry, and can be obtained at the park visitor centers. You must camp at least 1/4 mile from any water source.

Directions
The Rio Grande constitutes the southern border of the park. Entrances include Rio Grande Village (Boquillas Del Carmen, Mexico) in the east and Castolon (Santa Elena, Mexico) in the west.

Information Center
There is a visitor center in Rio Grande Village, in the southeast corner of the park.

Activities