Columbia subject headings:
Overland journeys to the Pacific.
West (U.S.)--Description and travel.
West (U.S.)--History.
Harvard subject headings:
Overland journeys to the Pacific
West (U.S.)--Description and travel.
West (U.S.)--History.
Princeton subject headings:
Overland journeys to the Pacific.
West (U.S.)--Description and travel.
West (U.S.)--History.