Map of the Illinois River basin
By Ohio-Kentucky-Indiana Water Science Center
2021 (approx.)
![Map of the Illinois River basin](https://d9-wret.s3.us-west-2.amazonaws.com/assets/palladium/production/s3fs-public/styles/full_width/public/thumbnails/image/illinois_river_basin_map.jpg?itok=tYtYwFug)
Detailed Description
Map of the Illinois River basin
Sources/Usage
Public Domain.
Map of the Illinois River basin
Public Domain.