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National Geologic Map Database

General Information

  • Title: Geology and oil possibilities of extreme southern Illinois, Union, Johnson, Pope, Hardin, Alexander, Pulaski, and Massac Counties
  • Author(s): Weller, J.M.
  • Publishing Organization: Illinois State Geological Survey
  • Series and Number: Report of Investigations 71 [71 p.]
  • Publication Date: 1940
  • Map Scale: 1:125,000
  • Cross Section: None
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* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.