Columbia subject headings:
Harvard subject headings:
Discoveries in geography--American.
Discoveries in geography--United States.
Indians of North America--West (U.S.)
Ohio River--Description and travel.
United States--Discovery and exploration.
West (U.S.)--Description and travel.
Princeton subject headings:
Indians of North America--West (U.S.)
Ohio River--Description and travel.
United States--Exploring expeditions.
West (U.S.)--Description and travel.