Kincaid Mounds State Historic Site

The Kincaid Mounds Historic Site c. 1050–1400 CE, is a Mississippian culture archaeological site located at the southern tip of present-day U.S. state of Illinois, along the Ohio River. Kincaid Mounds has been notable for both its significant role in native North American prehistory and for the central role the site has played in the development of modern archaeological techniques. The site had at least 11 substructure platform mounds, and 8 other monuments.

Artifacts from the settlement link its major habitation and the construction of the mounds to the Mississippian culture period. It is 140 miles from Cahokia, the major center of Mississippian culture in North America. The Kincaid site was also occupied earlier by indigenous peoples of the Late Woodland period. The site was declared a National Historic Landmark in 1964 for its significance as a major Native American mound center and prehistoric trading center along the Ohio River.

Source: Wikipedia