Although not produced by the Federal Government, maps produced by the state of Illinois are often sought after by researchers. Of particular interest are historic state highway maps.
Illinois State Highway Maps, State Park, and a selection of Forest Preserve maps are available in the Maps Unit and Government Documents section of the library. Some geologic maps of Illinois may also be available. County maps, particularly Cook County, are available in the Maps Unit. Check the library catalog for location and availability.
Print maps held by the Maps Unit are accessible by request during Special Collections hours. The online tools listed in this guide may be used to determine the map(s) needed prior to scheduling a visit.
Information and maps for State Parks can be found through the Illinois Department of Natural Resources website. For county forest preserves, one must visit each county website individually for information; the information provided varies. The Forest Preserve District of Cook County information is provided as an example.
Counties produce a plethora of maps pertaining to such things as elections and taxing districts. The amount of information posted online may vary by county. Cook County is provided here as an example.