Columbia subject headings:
Bonneville, Benjamin Louis Eulalie de, 1796-1878.
Northwestern States--Description and travel.
West (U.S.)--Description and travel.
Harvard subject headings:
Bonneville, Benjamin Louis Eulalie de, 1796-1878.
Northwestern States--Description and travel.
West (U.S.)--Description and travel.
Princeton subject headings:
Bonneville, Benjamin Louis Eulalie de, 1796-1878.
Northwestern States--Description and travel.
West (U.S.)--Description and travel.
West (U.S.)--History--To 1848.