Region
Colorado
7
Arizona
4
United States
4
Florida
3
Indiana
3
Montana
3
New Jersey
3
New York (State)
3
North Carolina
3
Rhode Island
3
Scituate Reservoir
3
Tenmile Creek Watershed (Lewis and Clark County)
3
Alabama
2
Alaska
2
California
2
Delaware River Watershed (N.Y.-Del. and N.J.)
2
Kentucky
2
Las Animas County
2
Monroe County
2
Pennsylvania
2
Raritan River Watershed
2
Virginia
2
Wisconsin
2
Arkansas River Watershed
1
Aroostook County
1
Blacks Fork (Utah and Wyo.)
1
Bradley River
1
Catskill Mountains
1
Cedar River (Minn. and Iowa)
1
Chama Valley (Colo. and N.M.)
1
Charlotte
1
Chickahominy River
1
Chulitna River Watershed
1
Coeur d'Alene River, South Fork
1
Coeur d'Alene River, South Fork (Idaho)
1
Coleto Creek
1
Conejos County
1
Conestoga River Watershed
1
Cumberland County
1
Des Plaines River (Wis. and Ill.)
1
Fort Carson
1
Fort Carson (Colo.)
1
Fraser River Watershed
1
Georgia
1
Glen Canyon Dam
1
Gwinnett County
1
Hawaii
1
Heart River
1
Hillsborough River Watershed (Polk County-Hillsborough County)
1
Idaho
1
more ...