Historical Marker
The Experiment
Historical marker location:
1050 S Riverside Dr, St. Charles, Missouri
( Marker can be reached from the intersection of South Riverside Drive and Boone's Lick Road, on the right when traveling north.)
The state of Missouri is home to several unique natural landmarks, including the Elephant Rocks State Park, which features giant granite boulders that resemble a herd of elephants, and the Ha Ha Tonka State Park, which has natural bridges, caves, and a castle ruin.