Northern Pacific Number 293, an Electro-Motive Division (EMD) GP9, at Livingston, Montana, June 1969.

Northern Pacific diesel locomotive number 211 the yard at Garrison, Montana, on June 06, 1955. NP 211 is a GP-9 built by Electro Motive Division of General Motors Company in 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, road switcher

Northern Pacific Number 1994, an Electro-Motive Division (EMD) GP18, at Livingston, Montana.

Northern Pacific diesel locomotive number 126 in a yard the Bozeman, Montana, on June 07, 1955. NP 126 is a SW 1200 built by Electro Motive Division of General Motors Company in 1955. This was the second unit numbered 126 for the NP. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switcher locomotive

A view of a westbound freight train climbing Bozeman Pass west of Livingston, Montana, in 1953. Photo by J.M. Fredrickson. Other Subject Classes: freight train.

A view of an eastbound freight train between Livingston and Laurel, Montana, in September 1953. Photo by J.M. Fredrickson. Other Subject Classes: freight train, steam locomotive.

Helper set Northern Pacific 859 and 860, both Alco RS-3s, wait in the yard of Bozeman, Montana, for their next assignment to help a train over Bozeman Pass in June 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, helper locomotive.

Helper set Northern Pacific 857 and 858, both American Locomotive Company (Alco) RS-3s, help a westbound extra freight over Bozeman Pass near Muir, Montana, in June 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, helper locomotive, steel caboose.

Helper set Northern Pacific 857 and 858, both American Locomotive Company (Alco) RS-3s, help a westbound extra freight over Bozeman Pass near Muir, Montana, in June 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, helper locomotive, steel caboose.

Northern Pacific 7007A leads the first section of train number 603 through the yard at Bozeman, Montana, on June 07, 1955. This train consisted of 71 loads, 2 empties and 3554 tons and was crewed by conductor Benson and engineer McGuire. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train, freight yard.