Cahokia Mounds State Historic Site is located:
30 Ramey Street
Collinsville, IL 62234
Cahokia Mounds State Historic Site will be closed on Mondays and Tuesdays starting September 8th.
3-mile hike through various ecozones with an archaeologist & a naturalist. Bring water and insect repellent and dress for the weather. 9:30am - 1:00pm. Cancelled in case of rain. Free.
Cahokia Archaeological Society Meeting
Come at 6:30 pm to help wash artifacts. Program and meeting, 7:30 pm.
Summer Solstice Sunrise Observance
Meet at the reconstructed Woodhenge. Arrive by 5:20 am. to hear an explanation of the discovery, form and function of this ancient post circle monument used as a calendar by the Mississippians. No ceremonies will be conducted. Free.