The Union Pacific Railroad (UP) is the largest rail transportation company in the US. Established in 1862, it has grown both by construction and by acquisition; its system now includes such railroads as the Western Pacific, Missouri Pacific, Rio Grande, Chicago & North Western, and the Missouri-Kansas-Texas. Its system stretches from Chicago and New Orleans in the east to Los Angeles, San Francisco and Seattle in the west. .For auction is a system map from the UP, dated 1925. It shows all UP trackage, as well as the main lines of connecting railroads. The back of the map has photos and descriptions of sights along the UP and of service on UP passenger trains.