Cahokia Mounds World Heritage Site

Cahokia Mounds World Heritage Site The grounds are open daily from dawn until dusk. Interpretive Center (IC) hours are Thursday - Sunday from 9 am until 5 pm.
(2760)

At this time masks are required in the IC.

Today is the beginning of our reopening at Cahokia Mounds. The Lobby (restrooms, gift shop, site model, Canoe exhibit ...
06/10/2026

Today is the beginning of our reopening at Cahokia Mounds. The Lobby (restrooms, gift shop, site model, Canoe exhibit and a new temporary exhibit) will be permanently open Wednesday through Sunday, 9 am to 3 pm, while we work to complete work in the Gallery wings (we hope to have this area open in late summer). As always, the grounds are open daily from sunrise to sunset. We are very excited to begin the reopening process after several years of repairs and structural issues.

06/09/2026

Cahokia Mounds World Heritage Site is now open to visitors with regular daily hours. From sunrise to sunset, guests are welcome to explore the grounds of this amazing site.

Now, from Wednesday through Sunday, 9 a.m. to 3 p.m. the interpretive center’s gift shop, restrooms, and gallery lobby are open as the finishing touches of mechanical upgrades are completed.

The Lobby, Gift Shop, and Restrooms will be open Saturday 6/6 from 9-2. The Gallery will remain closed.
06/05/2026

The Lobby, Gift Shop, and Restrooms will be open Saturday 6/6 from 9-2. The Gallery will remain closed.

Another beautiful morning ❤️
06/04/2026

Another beautiful morning ❤️

05/29/2026

The Lobby, Gift Shop, and Restrooms will be open Saturday 5/30 from 9-2. The Gallery will remain closed.

05/22/2026
05/21/2026

The Lobby, Gift Shop, and Restrooms will be open Saturday 5/23 from 9-2. The Gallery will remain closed.

Space is limited. To reserve your spot, call 618-346-5169.
05/14/2026

Space is limited. To reserve your spot, call 618-346-5169.

📸 CALLING ALL PHOTOGRAPHERS! Get YOUR photo(s) featured and SUPPORT Cahokia Mounds at the same time! From now until 2 PM...
05/12/2026

📸 CALLING ALL PHOTOGRAPHERS!

Get YOUR photo(s) featured and SUPPORT Cahokia Mounds at the same time!

From now until 2 PM, June 30, 2026, the Cahokia Mounds Museum Society (CMMS) is hosting a Photo Calendar Contest. This fundraising event supports CMMS and its mission to preserve and interpret Cahokia Mounds.

Selected photos may be featured in our upcoming calendar while helping support preservation and educational efforts at Cahokia Mounds State Historic Site.

Submit entries and view contest details here:
https://cahokiamounds.org/events/2026-photo-calendar-contest/

05/08/2026

The Lobby, Gift Shop, and Restrooms will be open Saturday 5/9 from 9-2. The Gallery will remain closed.

Address

30 Ramey Drive
Collinsville, IL
62234

Telephone

+16183465160

Website

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