County Maps

Map of Illinois showing counties that have been mapped.

County mapping is carried out at the ISGS under a variety of programs. The programs exist for different purposes and require different levels of scientific review. Maps are published in specific Series based on the program under which they were created and the corresponding level of review. The links on this page access all downloadable county-scale maps except Coal, Oil, and Gas, which are maintained separately. Please use the Coal Maps and Oil and Gas Maps links to access those maps.

The ISGS Library page provides links to catalogs of ISGS maps and publications.

Jo Daviess Quaternary Deposits 2000 Jo Daviess Drift Thickness
Jo Daviess Land Cover 2000 Jo Daviess Land Cover
Jo Daviess Surface Topography 2000 Jo Daviess Surface Topography
Jo Daviess Surficial Geology 2000
Jo Daviess Shaded Relief 2000 Jo Daviess Shaded Relief
Kane Three-dimensional Model 2007 Kane County 3D Map
Kane Aquifer Sensitivity 2007 Kane County Aquifer Map
Kane Surficial Geology 2013 Kane County Surficial Map
Kane Bedrock Geology 2007 Kane County Bedrock Map
Kane Cross Sections 2007 Kane County Cross Sections


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

*excludes EDMAP Series