Geology of the Cecilia quadrangle, Kentucky
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Geologic Quadrangle↗
Geology topics
Roy Clark Kepferle
Publications and source records attributed to Roy Clark Kepferle.
Uranium in Sharon Springs member of Pierre shale, South Dakota and northeastern Nebraska
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Bulletin↗
Preliminary geologic map of the Chalky Buttes area, Slope County, North Dakota
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Coal Map↗
Strippable lignite deposits, Slope and Bowman Counties, North Dakota
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Bulletin↗