Despite the similarity in name, Cahokia Mounds is not in the city of Cahokia, but is located in Collinsville, Illinois, about ten miles (16 km) away. The park entrance is on Collinsville Rd in Collinsville, about 8 mi (12 km) from downtown St Louis. The park is located just off of Interstate 55, and not far from Historic Route 66.
The Most Frequently Asked Travel Questions about Cahokia Mounds State Historic Site
Where To Stay & Best Hotels in Cahokia Mounds State Historic Site - updated May 2024
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