Welcome to Illinois

Historical marker location:

Quincy, Illinois

( Marker is at the intersection of U.S. 24 and State Route 96, on the right when traveling west on U.S. 24.)

Marker installed: 1989

The Chicago River was once so polluted that it caught on fire several times in the mid-20th century. The river was so polluted with chemicals and sewage that it was almost devoid of life. Today, the river has been cleaned up and is a popular spot for recreational activities like kayaking and boat tours.