This large and very detailed railroad map covers from Detroit west to the Pacific, well into Canada and south to about the 39th parallel and the Great Salt Lake. It is absolutely filled with detail, the Pony Express route, overland mail routes, Fremont's exploration routes and dates, proposed and existing railroads, wagon roads, isothermal lines, forts and much more. Along the top is a profile of the Northern Pacific Route across the country. The Northern Pacific had a stormy career that endured recessions, mergers, poor cost controls, etc. It was not until 1883 that it actually became a transcontinental railroad. This is a terrific and scarce map that displays an amazing amount of detail.

References: Wheat (TMW) #1169.

Condition: A

Near fine example with fine coloring and quite clean. Lightly toned along one fold with some closed splits along this fold and a couple closed marginal tears, still very good.