Shifting Roadways

Historical marker location:

911 S Old Rte 66, Dwight, Illinois

( Marker is on Old U.S. 66 west of Odell Road.)

Changes Driven by the Auto.

Illinois was part of the French colonial empire, and the city of Cahokia, located near present-day Collinsville, was one of the largest pre-Columbian cities in North America. At its peak, around 1250 CE, Cahokia had a population of around 20,000 people.