Map of the Country Tributary to
the Northern Pacific Railroad, compiled from English, Canadian, and
American official sources and original surveys by Edward H. Knight,
January 1, 1871.
This map of the northwest part of the United States and southwest part of Canada shows relief by hachures, drainage, isotherms, the wheat region, cities, towns, forts, routes and trails. It displays the railroad network and the proposed Northern Pacific Railroad.
The line was constructed under an act of Congress approved by Abraham Lincoln on July 2, 1864 with a land grant of nearly 40 million acres. Work began on the railroad in 1870 to extend the 6,800 miles of line between Minnesota and Washington State.
Completed in 1883, the west coast connection approximates the route of exploration taken by Lewis and Clark between 1804 and 1806.