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Region
- Georgia3
- IdahoIdaho National Laboratory Region2
- Maryland2
- Pennsylvania2
- Puerto Rico2
- Red River of the North Watershed2
- South CarolinaCooper River2
- South CarolinaWando River2
- Washington (State)Pierce County2
- Alabama1
- Alaska1
- AlaskaSpurr, Mount1
- Aldred, Lake (Pa.)1
- ArizonaSalt River Valley (Gila County and Maricopa County)1
- Big Blue River Watershed (Neb. and Kan.)1
- Carraízo Reservoir (P.R.)1
- Cascade Range1
- Charlotte Harbor (Fla. : Bay)1
- Clark County (Wash.)1
- Clarke, Lake (Pa.)1