Burlington Northern diesel locomotive 710, formerly Northern Pacific 6007A, at Auburn, Washington, on July 24, 1970. Number 710 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 10908. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 712, formerly Northern Pacific 6007D, at Auburn, Washington, on March 29, 1971. Number 712 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 10909. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 712 at Auburn, Washington, on March 29, 1971. Number 712, an ex-Northern Pacific F7A, is shown with U30C number 5730. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 714, formerly Northern Pacific 6008D, at Auburn, Washington, on April 01, 1971. Number 714 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 10911. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 720, formerly Northern Pacific 6010A, at Auburn, Washington, on March 01, 1971. Number 720 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 10914. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 720, formerly Northern Pacific 6010A, at Auburn, Washington, on March 01, 1971. Number 720 is an F7 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 720, formerly Northern Pacific 6010A, at Auburn, Washington in August 1975. Number 720 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 10914. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 720 at Auburn, Washington in 1979. Number 720, an ex-Northern Pacific F7A, is shown with ex Great Northern F7B number 9721 and GP20 2101. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 724, formerly Northern Pacific 6513C, at Auburn, Washington in November 1970. Number 724 is an F7, GP9, C636 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 724, formerly Northern Pacific 6513C, at Auburn, Washington in November 1970. Number 724 is an F7 built by General Motors Electro Motive Division (EMD). Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.