Retired archaeologist and Cahokia Mounds assistant manager Bill Iseminger spekas to a gathered crowd at a Fall Equinox observation ceremony in Cahokia Heights National Historic Site on Sept. 22, 2024.

Visitors of Cahokia Mounds State Historic Site can try experiencing it in “augmented reality,” or AR, to see the Grand Plaza as it appeared 1,000 years ago, the Palisade as it once stood and ...

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 ...

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 ...

The Cahokia Mounds was once a thriving metropolis 900 years ago with around 50,000 residents. By 1400, however, the site was almost entirely abandoned.