Army Trail Road

Historical marker location:

211 West Army Train Boulevard, Addison, Illinois

( Marker is at the intersection of West Army Trail Boulevard and John F. Kennedy Drive on West Army Trail Boulevard.)

Marker installed: 1974

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.