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National Geologic Map Database

General Information

  • Title: Geologic and structure contour maps of the northern and western flanks of the Black Hills, Wyoming, Montana, and South Dakota
  • Author(s): Mapel, W.J., and Robinson, C.S.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Open-File Report OF-56-77
  • Publication Date: 1956
  • Map Scale: 1:96,000
  • Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.