< Illinois
Statewide
- Functional Classification Maps by County (PDF)
- Functional Classification for entire State (Interactive)
- General Highway Maps for cities and counties from IDOT
- Illinois Virtual Tollway
- USGS National Map Viewer (sometimes quite out of date)
- 2011 Boundary and Annexation Survey Maps from US Census Bureau
- Google Map Tools (useful for drawing arbitrary polygons to use in AM requests)
City of Chicago
Additional Resources