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Region
- Georgia3
- AlaskaFairbanks1
- ArizonaGlen Canyon Dam1
- ArizonaTucson1
- ArizonaTucson Region1
- CaliforniaSanta Barbara County1
- Calumet Region (Ill. and Ind.)1
- Florida1
- Illinois1
- Kankakee River (Ind. and Ill.)1
- Maryland1
- Michigan1
- OklahomaCanton Lake1
- OklahomaNorth Canadian River1
- OklahomaOklahoma City1
- Pennsylvania1
- Snake River Watershed (Wyo.-Wash.)1
- Susquehanna River1
- Susquehanna River Watershed1
- Texas1