Quadrangle Maps

Equality Geology 1986 Equality Geology map
Eureka Surficial Geology 2015 54” x 40” sheet, includes map, legend, 3 figures, and descriptive text.  Map is available for download only. This map has not been reviewed by the Illinois State Geological Survey and does not necessarily conform to the usual style and standards for ISGS publications.
Evanston Surficial Geology 1939 Evanston Surficial map
Evansville Bedrock Geology 2012 Evansville Bedrock Map
Evansville Surficial Geology 2010
Fishhook Bedrock Geology 2008 Fishhook Bedrock map 1
Fishhook Surficial Geology
Foley Bedrock Geology 2010 Foley Bedrock Map
Forsyth Surficial Geology 2008 Forsyth EDMAP
Fox Lake Orthophoto Imagery 2013 Fox Lake Image Map


Purchase this map online through Shop ISGS*, or contact the Sales and Information Office for more information.

*excludes EDMAP series and student maps