Region
Texas
47
Big Bend National Park (Tex.)
9
Big Bend National Park
8
Rio Grande (Colo.-Mexico and Tex.)
7
Amistad National Recreation Area
6
Amistad National Recreation Area (Tex.)
5
Chamizal National Memorial (El Paso, Tex.)
5
Fort Davis National Historic Site (Tex.)
5
San Antonio Missions National Historical Park (San Antonio, Tex.)
5
Big Thicket National Preserve
3
Big Thicket National Preserve (Tex.)
3
Palo Alto Battlefield National Historical Park (Tex.)
3
Cameron County
2
El Camino Real de Tierra Adentro National Historic Trail (N.M. and Tex.)
2
El Chamizal (Mexico and Tex.)
2
El Paso
2
Lyndon B. Johnson National Historical Park (Tex.)
2
New Mexico
2
United States
2
Big Bend Region
1
Chamizal National Memorial (Tex.)
1
Chihuahua Trail
1
Dallas Region
1
Devils River (Crockett County-Val Verde County)
1
Fort Davis National Historic Site
1
Guadalupe Mountains National Park
1
Guadalupe Mountains National Park (Tex.)
1
Hidalgo
1
Mexico
1
North America
1
Palo Alto Battlefield National Historical Park
1
Pecos River (N.M. and Tex.)
1
Pecos River Valley (N.M. and Tex.)
1
San Antonio
1
Trinity River (Tex.)
1
Val Verde County
1
Waco
1
Waco Mammoth Site (Tex.)
1