"ROUTE OF THE ROCKETS"
The Rocky Mountain Rocket was a streamlined passenger train of the Chicago, Rock Island and Pacific Railroad. Rock Island's train numbers 7 and 8 ran from Chicago's LaSalle Street Station to Denver's Union Station and Colorado Springs, Colorado. The Rocky Mountain Rocket ran from 1939 to 1966; the train was discontinued prior to the creation of Amtrak in 1971.(source: Wikipedia)