Sepo ceramics

Sepo people are a theoretical Mississippian culture of the late Woodland period around 1000 BCE, present in Mississippian culture pottery of the Dickson Mounds.[1][2] Sepo occupations are confined to the Illinois River Valley between Anderson Lake in southern Fulton County, Illinois and Peoria Lake, including Sepo, Illinois an unincorporated community.

References

1. Archaeology in America: An Encyclopedia [4 volumes]: An Encyclopedia Linda S. Cordell, Kent Lightfoot, Francis McManamon - 2008 Two different Late Woodland cultural groups, referred to as Sepo and Maples Mill, occupied the Dickson Mounds area early in the history of the site when the primary use of the cemetery was begun.
2. Late Woodland Societies Thomas E. Emerson, Dale L. McElrath, Andrew C. Fortier - 2000 0803218214 "Harn proposes the Sepo phase for that part of the Sepo tradition following the Myer-Dickson phase, but acknowledges that the isolation of Sepo ceramics for the period immediately preceding the Mississippian presence has not been possible."