Illinois Adventure #1308 "Cahokia Mounds" The remains of the most sophisticated prehistoric native civilization north of Mexico are preserved at Cahokia Mounds State Historic Site. Within the 2,200-acre tract, located a few miles west of Collinsville, Illinois, lie the archaeological remnants of the central section of the ancient settlement that is today known as Cahokia.
"At its peak in the mid-12th century, Cahokia was by far the largest native community in North America. Smaller settlements shared similar features, including platform mounds, large plazas, and protective stockades." Art: Greg Harlin. Sources: Bill Iseminger and Mark Esarey, Cahokia Mounds State Historic Site; John Kelly, Washington University in St. Louis
Adena Giant Mound Builders - In the 1800s, reports began to surface of the discovery of very large skeletal remains in the burial mounds of North America. These skeletons were described as reaching seven to eight feet (2.4 meters) in length, with a lower frequency of discoveries spanning nine to 11 feet (3.3 meters) in length, and having very large skulls and gigantic lower jawbones.