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General Information

  • Title: Pennsylvanian cycles in western Illinois
  • Author(s): Wanless, H.R.
  • Publishing Organization: Illinois State Geological Survey
  • Series and Number: Bulletin 60 [p. 179-193]
  • Larger Work: Papers presented at the Quarter centennial celebration of the Illinois State Geological Survey
  • Publication Date: 1931
  • Map Scale: 1:1,724,081
  • Cross Section: Yes
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.