What is the largest prehistoric earthwork in North America?
Monk’s Mound is part of the Cahokia Mounds complex in Illinois and is the largest earthen mound in the world. The base of the mound is roughly the size of the Great Pyramid of Giza in Egypt. Archaeologists believe the on top of the mound was the home of the society’s royal leaders. Cahokia was occupied from about 900A.D. to 1300A.D.
**To get perspective on the size of Monk’s Mound, notice the car at the base of the mound.