Burlington Northern diesel locomotive 1518, formerly Great Northern 618, at Libby, Montana, on August 05, 1971. Number 1518 is a GP7 built by General Motors Electro Motive Division (EMD), builder's number 11044. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1520, formerly Great Northern 620, at Libby, Montana, on August 05, 1971. Number 1520 is a GP7 built by General Motors Electro Motive Division (EMD), builder's number 11046. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1710, formerly Northern Pacific 210, at Livingston, Montana, on September 02, 1972. Number 1710 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 20342. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1714, formerly Northern Pacific 241, at Livingston, Montana, on September 02, 1972. Number 1714 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 20644. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 1716, formerly Northern Pacific 243, at Livingston, Montana, on September 02, 1972. Number 1716 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 21020. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

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 1735, formerly Northern Pacific 297, at Livingston, Montana, on September 02, 1972. Number 1735 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 22780. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 1812, formerly Great Northern 660, at Havre, Montana, on August 23, 1972. Number 1812 is a GP9 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, freight yard.

Burlington Northern diesel locomotive 1815, formerly Great Northern 663, at Havre, Montana, on August 23, 1972. Number 1815 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 19348. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 1820, formerly Great Northern 668, at Glasgow, Montana, on August 23, 1972. Number 1820 is a GP9 built by General Motors Electro Motive Division (EMD), builder's number 19353. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.