Columbia subject headings:
Harvard subject headings:
American Bottom (Ill.)--Antiquities.
Excavations (Archaeology)--Illinois
Illinois--Antiquities.
Indians of North America--Illinois--Antiquities.
Marcus Site (Ill.)
Mississippian culture--Illinois.
Radic Site (Ill.)
Princeton subject headings:
American Bottom (Ill.)--Antiquities.
Excavations (Archaeology)--Illinois.
Illinois--Antiquities.
Indians of North America--Illinois--Antiquities.
Marcus Site (Ill.)
Mississippian culture--Illinois.
Radic Site (Ill.)