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National Geologic Map Database

General Information

  • Title: A geologic reconnaissance of the Tobacco Root Mountains, Madison County, Montana
  • Author(s): Tansley, Wilfred., Schafer, P.A., and Hart, L.H.
  • Publishing Organization: Montana Bureau of Mines and Geology
  • Series and Number: Memoir M-09
  • Publication Date: 1933
  • Map Scale: 1:205,920
  • Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.