Cahokia Mounds State Historic Site: UNESCO World Heritage Winter Trails & Center

Visit on your scheduleOutdoor grounds and trails open daily dawn to dusk (approx 8:00 AM–5:00 PM); Interpretive Center Lobby open Wed–Sun 9:00 AM–3:00 PM

Cahokia Mounds State Historic Site30 Ramey St, Collinsville, IL 62234 · 7.7 mi approx. from St. LouisDirections

All ages; stroller-friendly walking paths along grounds; staircase climb requires walking capability

FreeFree admission to outdoor grounds, Monks Mound, and visitor center lobby; voluntary donations welcome

About this adventure

Located just 15 minutes east of Downtown St. Louis across the river in Collinsville, Illinois, Cahokia Mounds State Historic Site is a UNESCO World Heritage Site preserving the remains of the most sophisticated prehistoric Native American civilization north of Mexico. Over 2,200 acres preserve 72 ancient earthen mounds constructed by the Mississippian culture a millennium ago. Families can climb the 154 wooden stairs up Monks Mound—the largest prehistoric earthen construction in the Americas—to take in breathtaking panoramic views of the distant St. Louis Gateway Arch skyline. The flat grass and gravel trail system weaves through the ancient plaza, past the Woodhenge solar calendar, offering excellent winter birding and crisp walking. The Interpretive Center Lobby provides heated restrooms, educational maps, and site models, with free entry for all visitors.

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