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Spatial Coverage
- South Dakota[remove]71
- Nebraska8
- Wyoming8
- Minnesota6
- North Dakota6
- Black Hills (S.D. and Wyo.)5
- Pennington County4
- South Dakota.4
- Badlands National Park (S.D.)3
- Badlands National Park.3
- Iowa1
- Meade County1
- Missouri1
- Pennington County (S.D.)1
- Pennington County.1
- Powder River Basin (Wyo. and Mont.)1
- Vermillion River1
- Vermillion River (S.D.)1
- Weston County (Wyo.)1
- Wind Cave National Park (S.D.)1
