National Geologic Map Database
General Information
- Title: Coal resources of Illinois: Colchester (No. 2), Dekoven, and Jamestown Coals with Belle Rive, Bristol Hill, Calhoun, Friendsville, Loudon, Oconee, Opdyke, Shelbyville, and Trowbridge Coals
- Author(s): Treworgy, J.D., and Bargh, M.H.
- Publishing Organization: Illinois State Geological Survey
- Publication Date: 1984
- Map Scale: 1:500,000
- Cross Section: None
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