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Region
- ColoradoBasalt1
- ColoradoBasalt Region1
- ColoradoRoaring Fork River1
- ConnecticutStorrs1
- Current River Watershed (Mo. and Ark.)1
- Hartwick Lake (Iowa)1
- IndianaIndianapolis Region1
- IndianaWhite River (River)1
- IowaHartwick Lake1
- Missouri1
- MissouriEleven Point Wild and Scenic River1
- MissouriLivingston County1
- TexasBig Thicket National Preserve1