The earliest campsites at Cahokia have been dated to 700 B.C., but it was nearly 1,400 years later before agriculture and mound-building began. Monks Mound was built over a 300-year period, from ...

EDITOR'S NOTE: The Cahokia Mounds Illinois State Historic Site near Collinsville is open daily, free of charge, although a donation of $2 for adults and $1 for children is suggested.

Cahokia Mounds was the center of the North American mound-building culture, reaching its height by about C.E. 1200. However, within 200 years, the city and surrounding villages were largely ...

CAHOKIA HEIGHTS, Ill — With the official start of winter just days away, many people will be heading to the Cahokia Mounds State Historic Site in Collinsville, Illinois, to observe the winter ...