Cahokia Mounds State Historic Site | What’s happening in St. Louis

Cahokia Mounds State Historic Site

30 Ramey Street
Collinsville , IL , 62234
Phone: 618-346-5161
38° 39' 17.6868" N, 90° 3' 32.9004" W
Contact name: 
Alice Morgan
Business/organization type: 
Seasons in which we offer activities (select "All seasons" for all): 
Ages for which our activities are most appropriate: 
Largest prehistoric Indian site in North America; a large world-class museum, orientation show; gift shop; interpretive trails; reconstructed Woodhenge and stockade walls; special events. Also a World Heritage Site and a National Historic Landmark.

Cahokia Mounds State Historic Site preserves the central section of the largest prehistoric Indian settlement in America north of Mexico. It covered nearly six square miles with 120 mounds and a population of 10-20,000 people of the Mississippian culture during its peak around AD 1050-1150.  A world-class Interpretive Center/Museum tells the story of this great Indian city with dioramas, murals, graphics, artifacts,and a recreated village. It has an award-winning orientation show, an excellent gift shop, and a number of outdoor interpretive trails, and guided and self-guided tours. Visitors can also climb the 156 stairs to the top of 100-foot-high Monks Mound and visit the reconstructed Woodhenge sun calendar. Special events, programs, lectures, craft classes, and more are held throughout the year. The Interpretive Center is open seven days a week from May through October; from November through April it is closed on Mondays and Tuesdays.The grounds are open from 8 am to dusk. For more information, go to the web site at or call 618-346-5160.

Cahokia Mounds is just eight miles from downtown St. Louis in Collinsville, Illinois, off Interstates 55/70 (Exit 6) and Interstate 255 (Exit 24) on Collinsville Road.

History, Nature/Outdoors, Arts: Performance, Arts and Crafts