Columbia subject headings:
La Vérendrye, Pierre Gaultier de Varennes, sieur de, 1685-1749.
Missouri River Valley--History--To 1803.
United States--Discovery and exploration.
Harvard subject headings:
America--Discovery and exploration.
Discoveries in geography--American.
La Vérendrye, Pierre Gaultier de Varennes, sieur de, 1685-1749
Missouri River Valley--History--To 1803.
Princeton subject headings: