Burlington Northern diesel locomotive 6522 at Seattle, Washington, on February 26, 1973. Number 6522 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 37130. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6561 at Seattle, Washington, on February 10, 1976. Number 6561 is an SD45 built by General Motors Electro Motive Division (EMD), builder's number 5794-19. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6601, formerly Great Northern 428, at Seattle, Washington, on June 23, 1973. Number 6601 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 34737. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6606, formerly Great Northern 433, at Seattle, Washington, on July 29, 1973. Number 6606 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 35110. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6608, formerly Great Northern 435, at Seattle, Washington, on May 18, 1974. Number 6608 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 35112. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6609, formerly Great Northern 436, at Seattle, Washington, on March 17, 1971. Number 6609 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 35113. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6614 at Seattle, Washington, on July 20, 1973. Number 6614 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 36341. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6619 at Seattle, Washington, on July 29, 1973. Number 6619 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 36346. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 662, formerly Great Northern 448D, at Seattle, Washington, on February 02, 1971. Number 662 is an F7A built by General Motors Electro Motive Division (EMD), builder's number 9539. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.

Burlington Northern diesel locomotive 6637 at Seattle, Washington, on July 29, 1973. Number 6637 is an F45 built by General Motors Electro Motive Division (EMD), builder's number 37177. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive.