Electro-Motive Division of General Motors diesel locomotive 4353, an SD-45 demonstrator unit, sits at the Northern Pacific diesel house in Auburn Washington before testing on Stampede Pass on April 28, 1966. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Electro-Motive Division of General Motors diesel locomotive 4353, an SD-45 demonstrator unit, sits at the Northern Pacific diesel house in Auburn Washington before testing on Stampede Pass on April 28, 1966. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Electro-Motive Division of General Motors diesel locomotive 4353, an SD-45 demonstrator unit, sits at the Northern Pacific diesel house in Auburn Washington before testing on Stampede Pass on April 28, 1966. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Electro-Motive Division of General Motors diesel locomotive 4352, an SD-45 demonstrator unit, sits at the Northern Pacific diesel house in Auburn Washington before testing on Stampede Pass on April 28, 1966. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive

Columbia and Puget Sound Railroad maintnenance facilities at Seattle, Washington, circa 1915. Roundhouse and turntable. Other Subject Classes: railroad servicing facilities.

Columbia and Puget Sound Railroad maintenance and servicing facilities at Seattle, Washington, circa 1912. Roundhouse and turntable, shop building, steam locomotives, Smith Tower under construction far right. Other Subject Classes: railroad servicing facilities, steam locomotives, miscellanea.

Butte, Anaconda and Pacific Railroad roundhouse and turntable at Butte, Montana in 1964. Photograph by Alden Raney. Other subject classes: Roundhouse, Turntable.

Burlington Northern turntable at Yakima, Washington, on October 10, 1992. This former Northern Pacific structure is in the 3rd subdivision of the Idaho division. Photo by GJ Werkema. Other subject classes: Structure, Turntable.

Burlington Northern turntable at Yakima, Washington, on October 10, 1992. This former Northern Pacific structure is in the 3rd subdivision of the Idaho division. Photo by GJ Werkema. Other subject classes: Structure, Turntable.

Burlington Northern turntable at Yakima, Washington, on October 10, 1992. This former Northern Pacific structure is in the 3rd subdivision of the Idaho division. Photo by GJ Werkema. Other subject classes: Structure, Turntable.