Map of the Union Pacific Railroad: Surveys of 1864, 65, 66, 67, 1868: from Missouri River to Humboldt Wells
Place of publication unspecified
This is a topographical map of the Union Pacific from Council Bluffs, Iowa, to the Great Salt Lake in Utah. The map is interesting in that it shows all of the potential routes and profile of railroad lines between the two points that were investigated by Dodge and the railroad’s engineers. Most were blind alleys, but some had promise given enough engineering work. The challenge was to find the best route that could be economically built.