Columbia subject headings:
Great Plains--Antiquities.
Great Plains--Maps.
Indians of North America--Great Plains--Antiquities.
Maps.
Harvard subject headings:
Excavations (Archaeology)--West (U.S.)--Databases.
Indians of North America--West (U.S.)--Databases.
West (U.S.)--Antiquities--Databases.
Princeton subject headings:
Databases.
Excavations (Archaeology)--West (U.S.)--Databases.
Indians of North America--West (U.S.)--Databases.
West (U.S.)--Antiquities--Databases.