Burlington Northern diesel locomotive 844 at Lester, Washington in 1980. F units 844 and 840 are a helper set this day on Stampede Pass as they run light across the Green River Viaduct east of Lester. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, helper locomotive.

Burlington Northern diesel locomotive 844, formerly Northern Pacific 7014D, at Auburn, Washington in September 1975. Number 844 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 21113. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 843, formerly Northern Pacific 7013B, at Vancouver, Washington, on May 28, 1974. Number 843 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 21120. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 843, formerly Northern Pacific 7013B, at Auburn, Washington in 1979. Number 843 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 21120. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 842, formerly Northern Pacific 7014A, at Pasco, Washington, on February 19, 1976. Number 842 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 21112. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 840, formerly Northern Pacific 7012D, at Auburn, Washington, on September 23, 1980. Number 840 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 21109. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, roundhouse.

Burlington Northern diesel locomotive 839, formerly Northern Pacific 7012B, at Auburn, Washington, on June 02, 1971. Number 839 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 21118. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 833, formerly Northern Pacific 7009B, at Auburn, Washington, on April 26, 1971. Number 833 is an F9B built by General Motors Electro Motive Division (EMD), builder's number 20303. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 832, formerly Northern Pacific 7009A, at Livingston, Montana, on September 02, 1972. Number 832 is an F9A built by General Motors Electro Motive Division (EMD), builder's number 20299. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.