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Region
- GeorgiaPlains2
- Maryland2
- Mississippi2
- AlaskaRussell Fiord1
- Appalachian Region1
- ArizonaGila River Indian Reservation1
- ArizonaSalt River Indian Reservation1
- East (U.S.)1
- High Plains (U.S.)1
- High Plains Aquifer1
- Hubbard Glacier (Alaska)1
- Johnson Creek (Clackamas County and Multnomah County, Or.)1
- Magothy Aquifer1
- MassachusettsCape Cod1
- MassachusettsQuashnet River1
- New Jersey1
- New York (State)1
- Oregon1
- OregonJohnson Creek (Clackamas County and Multnomah County)1
- Russell Fiord (Alaska)1