Burlington Northern 4055 (Class B30-7AB) at Missoula, Montana on October 10, 1983. Photo by George Bergson.

Burlington Northern diesel locomotive 1725, formerly Northern Pacific 287, at Missoula, Montana, on September 02, 1972. Number 1725 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22770. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 5641, formerly Chicago, Burlington and Quincy 561, at Missoula, Montana, on September 02, 1972. Number 5641 is a U25C built by General Electric, builder's number 35608. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6566 at Missoula, Montana, on September 02, 1972. Number 6566 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-24. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 703, formerly Northern Pacific 6012C/6001C, at Missoula, Montana, on September 02, 1972. Number 703 is an F3B built by General Motors Electro Motive Division (EMD), builder's number 3877. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Chicago, Burlington and Quincy Railroad diesel locomotive 883 at the round turntable in Missoula, Montana, on September 02, 1972. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Northern Pacific 2524, a General Electric U25C, leads SD45s 3608 and 3621 and an eastbound extra freight by the depot at Missoula, Montana, in July 1968. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train, passenger depot.

Northern Pacific 2524, a General Electric U25C, leads SD45s 3608 and 3621 and an eastbound extra freight out of Missoula, Montana, in July 1968. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight train, passenger depot.

Northern Pacific diesel locomotive number 5403 in the engine facility at Missoula, Montana, on April 24, 1950. NP 5403 is an FT built by Electro Motive Division of General Motors Company in 1944. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight locomotive

Northern Pacific diesel locomotive number 6506 in the engine facility at Missoula, Montana, on August 20, 1949. NP 6506 is an F-3 built by Electro Motive Division of General Motors Company in 1947. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive,