1981. 2018-05-11T19:04:58Z. 2018-05-11T19:04:58Z. North Dakota Geological Survey. Division of Geothermal Energy ; Map available free of charge from North Dakota Geological Survey. English. cartographic image. Public. North Dakota and North Dakota.
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1981. 2020-01-23T20:17:41Z. 2020-02-01T22:35:16Z. United States. Forest Service. U.S. Department of Agriculture, Forest Service. English. cartographic image. Public. Grand River National Grassland (S.D.), Cedar River National Grassland (N.D.), North Dakota, Cedar River National Grassland., South Dakota, and Grand River National Grassland.
1981. 2023-05-25T18:23:20Z. 2023-05-30T21:36:15Z. Randich, P. G. (Philip G.), 1932-2016. U.S. Geological Survey. English. cartographic image. Public. North Dakota, Towner County, and Towner County.