Cahokia Mounds State Historic Site

Iconic St. LouisMuseums & Galleries

About

Site of the largest prehistoric Indian city north of Mexico. Interpretive center, Woodhenge solar calendar, special events. From I-55, exit 6 on IL Rte. 111. From I-255, exit 24.

30 Ramey St.
Collinsville, IL 62234

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TripAdvisor Rating:

845 Reviews | Write a Review
Largest and Most Complex Pre-Colombian Archaeological Site North of Mexico
Reviewed By TravelingSoccerLoon November 2024

This was the location of a great city consisting of 10-20,000 and was the political, economic and spiritual center of the Mississippian civilization which extended throughout the Mississippi Valley...

Full Review
Very impressive. Short distance from the Gateway Arch and well worth the visit.
Reviewed By parksvisitor September 2025

I started hearing about Cahokia Mounds ten years ago or so, and we finally swung a road trip to visit along with a stop at the Gateway Arch. The visitor center/museum was unfortunately closed for...

Full Review
Wonderful time
Reviewed By Marcet D September 2025

Had family members born near mounds and have always wanted to see. Visitor Center closed, but lucky to find Cade, an above average park ranger! He helped me to understand the difference between 4...

Full Review

Hours

Interpretive Center: Thursday – Sunday, 9 a.m. – 5 p.m. Grounds open daily from dawn till dusk.

Handicap AccessibleIllinoisIllinois

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TripAdvisor Rating:

845 Reviews | Write a Review
Largest and Most Complex Pre-Colombian Archaeological Site North of Mexico
Reviewed By TravelingSoccerLoon November 2024

This was the location of a great city consisting of 10-20,000 and was the political, economic and spiritual center of the Mississippian civilization which extended throughout the Mississippi Valley...

Full Review
Very impressive. Short distance from the Gateway Arch and well worth the visit.
Reviewed By parksvisitor September 2025

I started hearing about Cahokia Mounds ten years ago or so, and we finally swung a road trip to visit along with a stop at the Gateway Arch. The visitor center/museum was unfortunately closed for...

Full Review
Wonderful time
Reviewed By Marcet D September 2025

Had family members born near mounds and have always wanted to see. Visitor Center closed, but lucky to find Cade, an above average park ranger! He helped me to understand the difference between 4...

Full Review