Region
Alabama
2
Alaska
2
Arizona
4
Arkansas River Watershed
1
Aroostook County
1
Blacks Fork (Utah and Wyo.)
1
Bradley River
1
California
2
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
Colorado
7
Conejos County
1
Conestoga River Watershed
1
Cumberland County
1
Delaware River Watershed (N.Y.-Del. and N.J.)
2
Des Plaines River (Wis. and Ill.)
1
Florida
3
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
Illinois
1
Illinois River Watershed
1
Indiana
3
James C. Campbell National Wildlife Refuge
1
James River
1
Jefferson County
1
Joliet
1
Kahuku Region
1
Kansas
1
Kentucky
2
Las Animas County
2
Maine
1
Marcellus Shale
1
Maricopa County
1
Marion County
1
Massachusetts
1
more ...