Columbia subject headings:
Architecture--Conservation and restoration--West (U.S.)
Historic sites--Conservation and restoration--West (U.S.)
West (U.S.)--History, Local.
Harvard subject headings:
Architecture--Conservation and restoration--West (U.S.)
Architecture--West (U.S.)--Conservation and restoration.
Historic preservation--West (U.S.)
Historic sites--Conservation and restoration--West (U.S.)
West (U.S.)--History, Local.
Princeton subject headings:
Architecture--West (U.S.)--Conservation and preservation.
Historic sites--West (U.S.)--Conservation and preservation.
West (U.S.)--History, Local.