Region
Big Bend National Park (Tex.)
Texas
22
Big Bend National Park
15
Rio Grande (Colo.-Mexico and Tex.)
3
Big Bend Region
1
Big Bend Region (Tex.)
1
Chisos Mountains
1
Georgia
1
Guadalupe Mountains National Park
1
Guadalupe Mountains National Park (Tex.)
1
Jimmy Carter National Historical Park (Plains, Ga.)
1
New Mexico
1
Rio Grande National Wild and Scenic River (Tex.)
1
White Sands National Monument
1
White Sands National Park (N.M.)
1