Burlington Northern diesel locomotive 4184, formerly Northern Pacific 904, at Vancouver, Washington, on April 06, 1971. Number 4184 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82948. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4186, formerly Northern Pacific 906, at Vancouver, Washington, on January 28, 1972. Number 4186 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82950. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4187, formerly Northern Pacific 907, at Vancouver, Washington, on April 06, 1976. Number 4187 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82951. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4190, formerly Northern Pacific 910, at Vancouver, Washington, on January 28, 1972. Number 4190 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82954. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4191, formerly Northern Pacific 911, at Vancouver, Washington, on February 12, 1976. Number 4191 is an RS-11 built by American Locomotive Company (ALCO), builder's number 82955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 4193, formerly Northern Pacific 913, at Vancouver, Washington, on April 08, 1976. Number 4193 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83583. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 4194, formerly Northern Pacific 914, at Vancouver, Washington, circa 1975. Number 4194 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83584. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 4195, formerly Northern Pacific 915, at Vancouver, Washington, on June 07, 1970. Number 4195 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83585. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 4195, formerly Northern Pacific 915, at Vancouver, Washington, on February 13, 1976. Number 4195 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83585. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, locomotive facility.

Burlington Northern diesel locomotive 4197, formerly Northern Pacific 917, at Vancouver, Washington in 1979. Number 4197 is an RS-11 built by American Locomotive Company (ALCO), builder's number 83587. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.