Columbia subject headings:
Harvard subject headings:
Cahokia Mounds State Historic Park (Ill.)
Excavations (Archaeology)--Illinois
Excavations (Archaeology)--Illinois--Saint Clair County.
Indians of North America--Illinois--Antiquities.
Indians of North America--Illinois--Saint Clair County--Antiquities.
Mound-builders--Illinois--Saint Clair County.
Mound-builders--Illinois.
Saint Clair County (Ill.)--Antiquities.
Princeton subject headings:
Cahokia Mounds State Historic Park (Ill.)
Excavations (Archaeology)--Illinois--Saint Clair County.
Indians of North America--Illinois--Saint Clair County--Antiquities.
Mound-builders--Illinois--Saint Clair County.
Saint Clair County (Ill.)--Antiquities.