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General Information

  • Title: Maps showing distribution, composition, and age of early and middle Cenozoic volcanic centers in Idaho, Montana, west-central South Dakota, and Wyoming
  • Author(s): Luedke, R.G.
  • Publishing Organization: U.S. Geological Survey
  • Series and Number: Miscellaneous Investigations Series Map I-2291-C
  • Publication Date: 1994
  • Map Scale: 1:1,000,000
  • Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.