Region
Texas
Gillespie County
12
Edwards Aquifer (Tex.)
9
Llano County
8
New Mexico
7
United States
7
Blanco County
6
Bexar County
5
Brazos River Watershed
5
Hudspeth County
5
Culberson County
4
Edwards Aquifer
4
Oklahoma
4
Austin
3
Dallas
3
El Paso
3
El Paso County
3
Hays County
3
Houston Region
3
Trinity River Watershed
3
Burnet County
2
Flower Garden Banks National Marine Sanctuary
2
Flower Garden Banks National Marine Sanctuary (Tex.)
2
Gulf Coast
2
Gulf Region
2
Jeff Davis County
2
Kendall County
2
Laredo
2
Louisiana
2
Mason County
2
Presidio County
2
Reeves County
2
San Antonio
2
Southwest, New
2
Trinity Aquifer
2
Trinity Aquifer (Tex.)
2
Abilene
1
Alamo (San Antonio, Tex.)
1
Amarillo
1
Amarillo (Tex.)
1
Amistad National Recreation Area
1
Amistad National Recreation Area (Tex.)
1
Arizona
1
Arkansas
1
Arkansas River
1
Atascosa County
1
Balmorhea Region
1
Bastrop County
1
Bay City
1
Beaumont
1
more ...