CMMS is proud to participate in #GivingTuesday, the Global Day of Unity and giving. As you know, our organization is dedicated to educating our community and interpreting this National Historic Landmark and UNESCO World Heritage Site – and we need your support to continue our work.
Thanks to generous donors like you, we have been able to preserve our shared history, expand outreach, and prepare for an exciting return of events in 2026.
Your donation at www.cahokiamounds.org strengthens our mission and creates real impact right here in our community. Your support makes it possible for us to bring back Kids Day, Land Acquisition projects, Archaeology Day, and Native cultural events, all of which will return in 2026.
We truly could not do this without you. We are grateful for your partnership, and every contribution, even just $10, makes a meaningful difference. As always, your donation is tax-deductible and 100% of funds remain at Cahokia Mounds to support preservation, education, and cultural programming.
Donations can be made via check, credit card, or online at www.cahokiamounds.org. For more information, call 618-344-9221.
Thank you for helping us preserve and interpret the ancient culture of Cahokia Mounds. Together, we can make a lasting impact. #GivingTuesday
The INTERPRETIVE CENTER (MUSEUM)
Exhibits & Gallery Will Remain Closed for Most of 2025 for Major Mechanical Renovations. The Museum Lobby, Restrooms, & Gift Shop may be Available During Select Guided Tour Times & Special Events.
The Grounds are OPEN to the public DAILY, from DAWN UNTIL DUSK:
- A WATER FOUNTAIN is located near the Monks Mound Parking Lot
- MAPS & BROCHURES are located in designated holders near Monks Mound Parking lot & in front of the Interpretive Center (Museum)
- DOGS must remain on a leash at all times
- A VAULT TOILET is available near the Monks Mound Parking Lot
CAHOKIA MOUNDS WORLD HERITAGE & STATE HISTORIC SITE is the largest pre-Columbian site north of Mexico. At its peak, around 1100, this metropolis stretched over 4,000 acres, encompassed about 120 earthen mounds, and hosted a population of nearly 20,000 individuals – larger than London at that time. The State of Illinois now protects roughly 2,200 acres of the central portion of the Site. Including 72 of the nearly 80 remaining mounds, as some mounds are situated in unprotected portions of the Site.
The Site was named a U.S. National Historic Landmark in 1965, and designated a United Nations Educational, Scientific, and Cultural Organization (UNESCO) World Heritage Site in 1982, for its significance in the pre-Contact history of North America.
