Camp Lyon

Historical marker location:

2301 N Prospect Road, Peoria, Illinois

( Marker is at the intersection of North Prospect Road and East Arcadia Avenue, on the left when traveling north on North Prospect Road.)

Marker installed: 1907

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.