The Cahokia Mounds Mississippian Culture National Historical Park Act would have established the Cahokia Mounds Mississippian Culture National Historical Park in Collinsville, Illinois.
U.S. Sen. Dick Durbin, D-Illinois, introduced the measure, S.1211, in the U.S. Senate on April 19, 2021. U.S. Rep. Mike Bost, R-Illinois, introduced a companion measure, H.R.2642, in the U.S. House.
The move would offer additional protections for the ancient mounds. It was referred to the U.S. Senate Energy and Natural Resources Subcommittee on National Parks.
The City of Cahokia was inhabited from 700 A.D. to 1400, and at its peak, from 1050 to 1200, the city covered nearly six square miles, an area larger than London at that time. Between 10,000 and 20,000 people lived there, and more than 120 mounds were built over time.
The site is named for the Cahokia subtribe of the Illinois tribe, who moved into the area in the 1600s.
