One 36" × 30" map sheet; includes map, legend, and descriptive text
Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.
*excludes EDMAP series and student maps
Richard C. Berg, Director
615 E. Peabody
Champaign, IL 61820
© 2023 University of Illinois Board of Trustees. All rights reserved.
For permissions information, contact the Illinois State Geological Survey.