Columbia subject headings:
Harvard subject headings:
Chert--United States.
Indians of North America--Implements.
Indians of North America--Quarries.
Quarries and quarrying, Prehistoric--United States.
Quarries and quarrying--United States.
Princeton subject headings:
Chert--United States.
Indians of North America--Implements.
Indians of North America--Industries.
Quarries and quarrying.
Quarries, Prehistoric--United States.