Cahokia Mounds World Heritage Site

06/19/2026

The link to upload your photos is on this flyer at the bottom. Or visit the website at Cahokiamounds.org.

06/19/2026

It is supposed to rain on Sunday. We will still plan to be there, often times the rain lets up just in time for the sun to peak through. If it is lightning at this time, it will be cancelled.

06/18/2026

This is a photo contest to win a chance to be featured in the Calendar for 2027. We are accepting photo entries for the 2027 Cahokia Mounds Calendar till June 30. Upload your photos of the site that you would like entered in the contest, there is a $5 fee per image. We have seem many fabulous images on socials that have been taken around the grounds that would be great for the Calendar! Winning photographers will receive a complimentary Calendar.

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.

06/05/2026

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

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.