Columbia subject headings:
Canada--Historical geography--Maps.
Maps.
Railroads--Canada--History--Maps.
Railroads--North America--History--Maps.
Railroads--United States--History--Maps.
United States--Historical geography--Maps.
Harvard subject headings:
Princeton subject headings:
Canada--Historical geography--Maps.
Maps.
Railroads--Canada--History--Maps.
Railroads--United States--History--Maps.
United States--Historical geography--Maps.