A Southern Pacific Railroad passenger train and freight train pass at Colfax, California, circa 1925. J.M. Fredrickson collection. Other Subject Classes: steam locomotive, passenger train, freight train.

A Northern Pacific passenger train near Seattle, Washington, circa 1935. The locomotive is a Q-5 Pacific. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

A Northern Pacific steam locomotive smokes up the sky at the head of passenger train near Seattle, Washington, circa 1935. The 4-6-2 Pacific was a mainstay of passenger service. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train

Northern Pacific freight train near Stampede, Washington, circa 1925. A Class Z-3 helper brings up the rear of the long express freight on the Stampede Pass line. Photo by J.A. Turner. Other Subject Classes: steam locomotive , freight train

A Northern Pacific steam locomotive leads a freight train in the Yakima River Canyon near Ellensburg, Washington, on July 23, 1937. The route follows the Yakima River between Ellensburg and Yakima, Washington. Photo by J.A. Turner. Other Subject Classes: steam locomotive , freight train

A Northern Pacific steam locomotive leads an eastbound freight train out of Tunnel number 4 at Stampede, Washington, circa 1925. The train consist is almost exclusively gondolas. Photo by J.A. Turner. Other Subject Classes: steam locomotive , freight train

A Northern Pacific steam locomotive leads a freight train at Seattle, Washington, circa 1946. The train is passing Interbay and will soon cross over the ship canal to Fremont, the University District and on around the north end of Lake Washington to Woodinville. Photo by J.A. Turner. Other Subject Classes: steam locomotive , freight train

A Great Northern steam locomotive leads a passenger train, circa 1941. The southbound train smokes up the sky as it pounds through Black River, Washington. Photo by J.A. Turner. Other Subject Classes: steam locomotive, passenger train