Filters: Tags: Dunn County, North Dakota (X)

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Fossil log standing nearly upright in clay shale of the Fort Union formation. Dunn County, North Dakota. 1913. Fossil log standing nearly upright in clay shale of the Fort Union formation. Dunn County, North Dakota. 1913. Plate 21-A in U.S. Geological Survey Bulletin 726. 1922 Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bauer, C.M. Collection, Dunn County, North Dakota, Photographers, photo print Sage brush flat on Hans Creek, and bluffs of the Fort Union formation. Dunn County, North Dakota. 1913. Sage brush flat on Hans Creek, and bluffs of the Fort Union formation. Dunn County, North Dakota. 1913. Plate 22-A in U.S. Geological Survey Bulletin 726. 1922. Categories: Image; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Bauer, C.M. Collection, Dunn County, North Dakota, Photographers, photo print