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

Diesel locomotive BN 1990, Class GP18 at Missoula, Montana, 1971. Other Subject Classes: Locomotive-Diesel

Diesel locomotive BN 1990, Class GP18 at Missoula, Montana, July 1971. Other Subject Classes: Locomotive-Diesel

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.

Northern Pacific Electro-Motive Division Type F9A numbered as Burlington Northern 810 at Missoula, Montana, April 10, 1971.

Northern Pacific 384 (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type GP9, a Great Northern Electro-Motive Division Type F7A numbered as Burlington Northern 686, a Great Northern Type F7B numbered as Burlington Northern 679, and Southern Pacific 7114, an American Locomotive Company (ALCO) Type C628 at Missoula, Montana, May 17, 1970.

Northern Pacific General Electric Type U25C numbered as Burlington Northern 5609, Chicago, Burlington and Quincy Electro-Motive Division Type SD9 numbered as Burlington Northern 6249 and Burlington Northern 6247 west of at Missoula, Montana, September 5, 1970.

Northern Pacific General Electric Type U25C numbered as Burlington Northern 5673, Great Northern Electro-Motive Division Type SD45 numbered as Burlington Northern 6450, and Northern Pacific Electro-Motive Division Type SD45 numbered as Burlington Northern 6418 at Missoula, Montana, September 6, 1970.

Chicago, Milwaukee, St. Paul & Pacific Railroad Company electric locomotive number E-10 at Missoula, Montana, circa 1948. Milwaukee Road E-10 leads passenger train No. 18 west of Missoula circa 1948. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, passenger train.

Chicago, Milwaukee, St. Paul & Pacific Railroad Company electric locomotive number E-77 near Missoula, Montana, on September 02, 1972. Milwaukee Road Little Joe's E77 and E75 with diesel 321 lead an eastbound freight west of Missoula in 1972. Photo by J.M. Fredrickson. Other Subject Classes: electric locomotive, diesel Locomotive, freight train.

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 3615 (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type SD45, a Great Northern General Electric Type U28C numbered as Burlington Northern 2544, and Northern Pacific 3307 (part of the Burlington Northern since March 1, 1970), a General Electric Type U28C at Missoula, Montana, May 17, 1970.

Northern Pacific 384, an Electro-Motive Division Type GP9, a Great Northern Electro-Motive Division Type F7A numbered as Burlington Northern 686, a Great Northern Type F7B numbered as Burlington Northern 679, and Southern Pacific 7114, an American Locomotive Company (ALCO) Type C628 at Missoula, Montana, May 17, 1970.

Northern Pacific 384 (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type GP9, a Great Northern Electro-Motive Division Type F7A numbered as Burlington Northern 686, a Great Northern Type F7B numbered as Burlington Northern 679, and Southern Pacific 7114, an American Locomotive Company (ALCO) Type C628 at Missoula, Montana, May 17, 1970.

Six locomotives heading a train: Northern Pacific 6005A and 6013D, both Electro-Motive Division Type F9As, Northern Pacific 7009B, a Type F9B, Northern Pacific 345, a Type GP9, Great Northern 1771, an Electro-Motive Division Type GP9, (all part of the Burlington Northern since March 1, 1970, and Southern Pacific 7112, an American Locomotive Company (ALCO) Type C628 at Missoula, Montana, May 17, 1970.

Great Northern Diesel Locomotive 98 at Missoula, Montana on May 16, 1976. The photograph shows an Electro-Motive Division Type SW-8, Great Northern Class SW-2. The locomotive is painted in the simplified green and orange scheme. Photograph by Larry Zeutschel. Other subject classes: Locomotive-Diesel

Great Northern hopper car 171251 (part of the Burlington Northern since March 1, 1970) at Missoula, Montana, April 10, 1971.

Great Northern Steam Locomotive Number 1754 at Missoula, Montana, 1916.

Great Northern Steam Locomotive Number 419 at Missoula, Montana, 1916.

Northern Pacific 1356 on display near the Depot in Missoula, Montana on August 19, 1997. Northern Pacific 1356, an S4 class locomotive built by Baldwin Locomotive Works in 1902. Photo by GJ Werkema. Other subject classes: steam locomotive, Semaphore Signal, S-4

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 6707A (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type F5A, and 6700B, a Type F5B on Train 30 at Missoula, Montana, May 17, 1970.

Northern Pacific 6707A (part of the Burlington Northern since March 1, 1970), an Electro-Motive Division Type F5A, and 6700B, a Type F5B on Train 30 at Missoula, Montana, May 17, 1970.

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,

Northern Pacific Number 6703A, an Electro-Motive Division (EMD) Type F9A, at Missoula, Montana, June 1969.