Columbia subject headings:
Excavations (Archaeology)--Illinois.
Illinois--Antiquities.
Labras Lake Site (Ill.)
Prehistoric peoples--Illinois.
Harvard subject headings:
Excavations (Archaeology)--Illinois
Illinois--Antiquities.
Labras Lake Site (Ill.)
Prehistoric peoples--Illinois.
Princeton subject headings:
Excavations (Archaeology)--Illinois.
Illinois--Antiquities.
Labras Lake Site (Ill.)
Prehistoric peoples--Illinois.