Columbia subject headings:
Harvard subject headings:
Earthworks (Archaeology)--Ohio.
Excavations (Archaeology)--Ohio--Hopewell Culture National Historical Park.
Hopewell Culture National Historical Park (Ohio)--Antiquities.
Hopewell culture--Ohio.
Indians of North America--Ohio--Antiquities.
Mound-builders--Ohio.
Woodland Indians--Ohio--Antiquities.
Princeton subject headings:
Earthworks (Archaeology)--Ohio.
Excavations (Archaeology)--Ohio--Hopewell Culture National Historical Park.
Hopewell culture--Ohio.
Indians of North America--Ohio--Antiquities.
Woodland Indians--Ohio--Antiquities.