Northern Pacific freight train west of Livingston, Montana, circa 1955; Electro-Motive Division model F9 diesel freight locomotive leads a long freight train with deadhead passenger cars in front. Photo by J.M. Fredrickson. Other Subject Classes: freight train, diesel locomotive, passenger car

Eastbound train number 640 rounds Borup Loop, Washington, to gain elevation on its way toward New Stampede and Tunnel 4, on April 19, 1962. J.M. Fredrickson collection. Other Subject Classes: diesel locomotive, freight train, mountains.

Northern Pacific freight power 285 and 7005B prepare to leave Livingston, Montana, in January 1965. Northern Pacific 285, a type GP9 and 7005B. a type F9B were built by General Motors Electro-Motive Division in 1957 and 1954 respectively. This picture is a Blackhawk Films slide, copyright 1970 by The Eastin-Phelan Corp. Other subject classes: diesel locomotive, switcher locomotive, GP9

Northern Pacific F-9 diesel locomotive 7008D in a yard at Spokane, Washington, on 1968. Blackhawk Films slide, GJ Werkema collection. Other subject classes: freight train, diesel locomotive

Northern Pacific F-9 diesel locomotive 7003A enters a yard switch. GJ Werkema collection. Other subject classes: freight train, diesel locomotive

Northern Pacific F-9 diesel locomotive 6706A heads four other units waiting to head westbound from St. Paul Union Depot in Minnesota in 1965. Photo by GJ Werkema. Other subject classes: passenger train, diesel locomotive

Northern Pacific F-9 diesel locomotive 6702C with the Mainstreeter train makes a station stop at Fargo, North Dakota, in 1965. Blackhawk Film slide, GJ Werkema collection. Other subject classes: passenger train, diesel locomotive, Mainstreeter

Northern Pacific F-7 diesel locomotive 6509C and the other three units on the train, will be replaced by the units on the right during a station stop at Livingston, Montana, in 1965. Blackhawk Film slide, GJ Werkema collection. Other subject classes: passenger train, diesel locomotive, North Coast Limited

Northern Pacific F-7 diesel locomotive 6015D and two B-units lead a a freight train on the mainline. GJ Werkema collection. Other subject classes: freight train, diesel locomotive

Northern Pacific F-3 diesel locomotive 6001A leaves the yard at Auburn, Washington, in 1968. Blackhawk Films slide, GJ Werkema collection. Other subject classes: freight train, diesel locomotive