Three Milwaukee Road diesel locomotives near Boylston, Washington, circa 1971. A Milwaukee Road (MILW) General Electric and two Electro Motive Division locomotives leading a westbound train out of the tunnel at Boylston, Washington. The photograph is undated, but was developed in June, 1971.

City of Tacoma watershed facility at Headworks Spur, Washington, in the upper Green River valley, in December 1953. Northern Pacific passenger train number 26, the North Coast Limited, passes at left, Tacoma water pipe inlet at lower right. Photo by J.M. Fredrickson. Other Subject Classes: passenger train, diesel locomotive

Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 944 (construction number 80608, built in 1953) parked at the engine facility in Tacoma, Washington, in 1980. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 930 (construction number 78414, built in 1953) hauls a long cut of cars in Tacoma, Washington, in June 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive, freight train.

Tacoma Municipal Belt Line Railway Alco S-4 diesel locomotive number 921 (built in 1953) parked in Tacoma, Washington, in February 1975. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Alco S-1 diesel locomotive number 905 (built in 1950) parked in Tacoma, Washington, on October 20, 1971. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Whitcomb 65DE-19A diesel locomotive number 904 (built in 1944) switches cars in Tacoma, Washington, circa 1955. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Alco S-1 diesel locomotive number 902 (built in 1942) switches cars in Tacoma, Washington, circa 1955. Photo by Al Harris, J.M. Fredrickson Collection. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Alco S-1 diesel locomotive number 902 (built in 1942) switches cars at Tacoma, Washington, circa 1955. Photo by Al Harris, J.M. Fredrickson Collection. Other Subject Classes: diesel locomotive, switching locomotive.

Tacoma Municipal Belt Line Railway Electro-Motive Division (EMD) SW9 diesel locomotive number 1202 (construction number 13138, built in 1951) parked in Tacoma, Washington, on July 21, 1986. Photo by J.M. Fredrickson. Other Subject Classes: diesel locomotive, switching locomotive.