Beaver Island

Historical marker location:

4372 Park Rd, Ellis Grove, Illinois

( Marker can be reached from Park Road, ½ mile west of Shawneetown Trail (County Route 3).)

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.