Quadrangle Maps

Freeport East Surficial Geology 2013 Freeport East Surficial EDMAP
French Village Surficial Geology 2004 French Village Surficial map
French Village Bedrock Topography 2004 French Village Bedrock map
French Village Bedrock Geology 1999
Galatia Bedrock Geology 2015 Bedrock Geology of Galatia Quadrangle
Galena Bedrock Geology 2022 Bedrock Geology of Galena Quadrangle, Jo Daviess County, Illinois, map thumbnail, sheet 1
Garden Prairie Surficial Geology 2015 Surficial Geology of Garden Prairie
Geneva Surficial Geology 2002 Genevea Surficial Map
Germantown Hills Surficial Geology 2015
Gibson City West Surficial Geology 2018 Surficial Geology of the 7.5-Minute Gibson City West Quadrangle Champaign, Ford, and McLean Counties, Illinois, map thumbnail


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

*excludes EDMAP series and student maps