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Archaeological site · Collinsville, Illinois
Cahokia Mounds
Archaeological site of the largest pre-Columbian city north of Mexico, with more than 70 earthen mounds and the great Monks Mound, a UNESCO World Heritage site.
Illustrative images. The pictures in this guide are illustrations based on the real place, not photographs, and may differ from it.
Discover
About Cahokia Mounds
Cahokia was the largest pre-Columbian city north of Mexico, built by peoples of the Mississippi culture. At its peak, around the year 1100, it may have had between 10,000 and 20,000 inhabitants—more than London at the same time—and was abandoned around 1350. The site is a UNESCO World Heritage Site.
The inhabitants built about 120 earthen mounds, carried in baskets; more than 70 are protected at the site. Monks Mound, the largest, is about 30 meters high and has a base larger than that of the Great Pyramid of Giza; a staircase leads to the top, from where you can see the Gateway Arch in the distance. Nearby, the Woodhenge reconstructs a circle of wooden posts used as a solar calendar.
The interpretive center has models, artifacts found in excavations, and a reconstruction of a village.
Before you go
Practical information
Cidade Turismo reviews its information regularly, but something may have changed. Check with the place before planning your trip.
How much time to set aside
Two to three hours.
Best time
In spring and fall, in the morning; in summer bring water and a hat, because there is little shade.
How to get there
By car, about 20 km from downtown St. Louis and about 6 km from downtown Collinsville.
Tip
Check the website to see if the interpretive center is open; the trails and Monks Mound usually remain open even when the center is closed.
Official website
Get your questions answered
Frequently asked questions about Cahokia Mounds
Is Cahokia Mounds a UNESCO World Heritage Site?
Yes, as the site of the largest pre-Columbian city north of Mexico.
Can you climb Monks Mound?
Yes, via a staircase to the top, about 30 meters high.
How many mounds are there at Cahokia?
More than 70 are protected within the site, out of about 120 originally built.