Cahokia Mounds State Historic Site
- Also Known As: Monks Mounds
- Address: 7850 Collinsville Rd
The Cahokia Mounds State Historic Site preserves the earthen platforms of a pre-Columbian city in modern Collinsville, Illinois, including the 30-m-high Monks Mound, the largest prehistoric earthwork in the Americas. The site was added to the UNESCO World Heritage List in 1982 because it is a striking example of a complex chiefdom society, with many satellite mound centres and numerous outlying hamlets and villages. Also, as this largest pre-Columbian settlement north of Mexico is the pre-eminent example of a cultural, religious and economic centre of the Mississippian culture (800-1350), which extended throughout the Mississippi Valley and the south-eastern United States. - AsNotedIn