National Geologic Map Database
General Information
- Title: Geologic map of Illinois
- Author(s): Willman, H.B., Frye, J.C., Simon, J.A., Clegg, K.E., Swann, D.H., Atherton, Elwood, Collinson, Charles, Lineback, J.A., and Buschbach, T.C.
- Publishing Organization: Illinois State Geological Survey
- Publication Date: 1967
- Map Scale: 1:500,000
- Cross Section: Yes
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- This product is available, please note the title, and then contact:
- Illinois State Geological Survey
- Sales/Information Office
- ISGS
- 615 E. Peabody Drive
- Champaign, IL 61820-6964
- Phone: (217) 244-2414
- Email: sales@prairie.illinois.edu
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.