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Region
- Iowa2
- Alabama1
- AlaskaClark, Lake1
- AlaskaTlikakila River (Kenai Peninsula Borough and Lake and Peninsula Borough)1
- Arkansas1
- ArkansasBenton County1
- ArkansasOsage Creek (Benton County and Washington County)1
- ArkansasPrairie Creek (Benton County : River)1
- Atlantic Coast (New England)1
- Black Hills (S.D. and Wyo.)1
- Boeuf River Watershed (Ark. and La.)1
- Colorado1
- Colorado River (Colo.-Mexico)1
- ColoradoBig Thompson River1
- ColoradoFraser River Watershed1
- ColoradoGunnison County1
- ColoradoGunnison River Watershed1
- Colville River Watershed (Wash.)1
- Connecticut River1
- ConnecticutFairfield County1