Name: Site historique d'Etat des Cahokia Mounds topographic map, elevation, terrain.
Location: Site historique d'Etat des Cahokia Mounds, Conrail Road, CSX Exermont Yard, Exermont, Collinsville, Saint Clair County, Illinois, 62201, États-Unis d'Amérique (38.63704 -90.08270 38.66672 -90.04729)
Average elevation: 128 m
Minimum elevation: 123 m
Maximum elevation: 145 m