Cahokia Mounds State Historic Site

Common questions about Cahokia Mounds State Historic Site

• Where is Cahokia Mounds State Historic Site?

  Cahokia Mounds State Historic Site is at 30 Ramey Dr, Collinsville, IL 62234, Illinois.

• What are the hours at Cahokia Mounds State Historic Site?

  Typical hours: Wed-Sun 9am-5pm (interpretive center); grounds dawn-dusk. Hours can shift seasonally and on holidays — always confirm on the official site before you plan your visit.

• What's Cahokia Mounds State Historic Site like to visit on a family road trip?

  The largest pre-Columbian archaeological site north of Mexico — a Mississippian-culture city of 20,000 people that flourished here from 1050 to 1350. UNESCO World Heritage Site. Monks Mound rises 100 feet (climb the stairs for the view back across the river to the Gateway Arch). Interpretive Center is free, the trails are free, and you can do the highlights in two hours. Just across the river from St. Louis, off I-55/70.

• Is Cahokia Mounds State Historic Site family-friendly?

  Yes — Cahokia Mounds State Historic Site earns a 4/5 family-friendly rating in our database. Older kids tend to enjoy it; little ones may get restless.

• How long should families plan to stay at Cahokia Mounds State Historic Site?

  Most families spend an hour or two at Cahokia Mounds State Historic Site, depending on kid stamina and weather.