Columbia subject headings:
Harvard subject headings:
Cascade Tunnel (Wash.)
Great Northern Railway Company (U.S.)
Great Northern Railway Company (U.S.)--History.
Hill, James J. (James Jerome), 1838-1916
Hill, James J. (James Jerome), 1838-1916.
Pacific railroads--History.
Railroads--Minnesota--History.
Princeton subject headings:
Cascade Tunnel.
Great Northern Railway Company (U.S.)
Hill, James J. (James Jerome), 1838-1916.