Region
Africa
1
America
2
Andes Region
1
Angelina River (Tex.)
1
Antioquia (Colombia : Dept.)
1
Antwerp (Belgium)
1
Apalachicola River Watershed
1
Arequipa (Dept.)
1
Argentina
1
Arkansas
1
Arlington
1
Austin
37
Austin (Tex.)
15
Austin Metropolitan Area
1
Austin Region
1
Barton Springs/Edwards Aquifer Conservation District
1
Bastrop County
1
Beaumont
1
Beaumont (Tex.)
1
Bee County
1
Bee County (Tex.)
1
Bexar County
1
Big Bend National Park
1
Boconó (District)
1
Boconó (Venezuela : District)
1
Bogotá
1
Bogotá (Colombia)
1
Bolivia
1
Brazil
4
Brazos River
1
Brazos River Watershed
3
Brazos River Watershed (Tex.)
1
Bristol (England)
1
Calcasieu Parish
1
California
1
Cameron Parish
1
Castro County
1
Chisos Mountains
1
Ciudad Juárez
1
Colombia
1
Colorado City, Lake
1
Colorado River
1
Colorado River (Tex.)
1
Colorado River Watershed
3
Colorado River Watershed (Colo.-Mexico)
2
Concho River Region
1
Concho River Region (Tex.)
1
Confederate States of America
1
Connecticut
1
Conroe Lake (Tex.)
1
more ...