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Region
- Arizona2
- Kansas2
- South Carolina2
- Alaska1
- AlaskaKnik Arm1
- AlaskaMatanuska River1
- AlaskaSeward1
- Atlantic Intracoastal Waterway1
- CaliforniaAlpine County1
- CaliforniaLeviathan Mine1
- CaliforniaSan Francisco Bay Area1
- Castle Lake (Cowlitz County, Wash.)1
- Colorado River Watershed (Colo.-Mexico)1
- Cook Inlet (Alaska)1
- Fremont Lake (Wyo.)1
- Leviathan Mine (Calif.)1
- New Hampshire1
- New HampshireMirror Lake (Grafton County)1
- New York (State)1
- New York (State)Black River (Herkimer County-Jefferson County)1