Region
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Bali (Indonesia : Province)
1
Bali Island
2
Balkan Peninsula
1
Barrow Canyon
1
Battle Creek
1
Bear Creek (Anderson County and Roane County)
1
Beaufort Sea
3
Beaver Creek Watershed (McCreary County)
1
Becker County
1
Belgium
4
Bellevue (Iowa)
1
Benton County
1
Big Blue River
1
Big Blue River (Neb. and Kan.)
1
Big Lost River Valley
1
Big Sioux Aquifer
1
Big Sioux Aquifer (S.D.)
1
Black Mesa (Navajo County and Apache County)
1
Boise
1
Borrego Valley
1
Brandywine Creek
1
Brandywine Creek (Pa. and Del.)
1
Brazil
4
British Columbia
1
Brown County
2
Buffalo
1
California
40
California, Southern
3
Cambodia
1
Cambridge
1
Cambridge (Cambridgeshire)
1
Canada
22
Cape Cod
2
Cardiff (Wales)
1
Caribbean Area
1
Carlyle
1
Carson River Valley
1
Castle Creek, South Fork
1
Castle Lake (Cowlitz County)
2
Cedar Falls
1
Cedar River (Minn. and Iowa)
1
Central America
1
Central Valley
1
Charlotte Harbor (Bay)
1
Charlotte Harbor (Fla. : Bay)
1
Charlotte Harbor Region
1
Chattahoochee River
1
Chattahoochee River Watershed
1
Chenega Bay
1
Chesapeake Bay
1
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