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Spatial Coverage
- North Dakota[remove]109
- South Dakota6
- Minnesota5
- North Dakota.5
- Montana4
- Williston Basin2
- Burleigh County1
- Iowa1
- Lake Winnipeg.1
- Logan County1
- Logan County (N.D.)1
- Manitoba1
- McHenry County1
- McHenry County (N.D.)1
- Minnesota River Watershed (S.D. and Minn.)1
- Missouri1
- Montana.1
- Nebraska1
- Powder River Basin (Wyo. and Mont.)1
- Red River of the North1
