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National Geologic Map Database

General Information

  • Title: Cretaceous rocks of the Clark Fork Valley, central western Montana
  • Author(s): Gwinn, V.E.
  • Publishing Organization: Billings Geological Society
  • Series and Number: Guidebook 16
  • Larger Work: Fields, R.W., and Shepard, W. eds., Geology of the Flint Creek Range, Montana
  • Publication Date: 1965
  • Map Scale: 1:77,981
  • Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.