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  1. By: O'Harra, Cleophas C.
    Publication info: Rapid City, S.D, [The Daily Journal], 1910
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Black Hills  Geology  Geology, Stratigraphic  South Dakota  Tertiary  Vertebrates, Fossil  
  2. By: National Museum of Natural History (U.S.) - Rydberg, Per Axel,
    Publication info: 1892-1893
    Holding Institution: Smithsonian Institution Archives
    Subjects: Black Hills  Botany  Field notes  South Dakota  United States
    BHL Collections: Smithsonian Field Books collection
  3. By: National Museum of Natural History (U.S.)
    Publication info: 1875
    Holding Institution: Smithsonian Institution Archives
    Subjects: Black Hills  Botany  Field notes  Platte  South Dakota  United States
    BHL Collections: Smithsonian Field Books collection
  4. By: Geographical and Geological Survey of the Rocky Mountain Region (U.S.) - Newton, Henry, - Jenney, Walter Proctor,
    Publication info: Washington, Govt. Print. Off, 1880
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Black Hills  Black Hills, South Dakota  Geology  Mines and mineral resources  South Dakota
  5. By: O'Harra, Cleophas C.
    Publication info: Rapid City, S.D, 1920
    Holding Institution: Smithsonian Libraries and Archives
    Subjects: Black Hills  Geology  Geology, Stratigraphic  South Dakota  Tertiary  Vertebrates, Fossil