Cahokia

Historical marker location:

105 Church Street, Cahokia, Illinois

( Marker is on East 1st Street just west of Church Street, on the right when traveling west.)

Marker installed: 2003

Lewis & Clark Expedition. 1803-1806.

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.