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By: Geographical and Geological Survey of the Rocky Mountain Region (U.S.) - Newton, Henry, - Jenney, Walter P, (Walter Proctor.Edition:Publication info: Washington, Govt. Print. Off, 1880Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Black Hills Black Hills, South Dakota Geology Mines and mineral resources South DakotaBHL Collections:
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By: O'Harra, Cleophas C.Edition:Publication info: Rapid City, S.D, [The Daily Journal], 1910Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Black Hills Geology Geology, Stratigraphic South Dakota Tertiary Vertebrates, FossilBHL Collections:
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By: O'Harra, Cleophas C.Edition:Publication info: Rapid City, S.D, 1920Volume:Series:Holding Institution: Smithsonian Libraries and ArchivesSubjects: Black Hills Geology Geology, Stratigraphic South Dakota Tertiary Vertebrates, FossilBHL Collections: