SP&S diesel locomotive Number 322, an American Locomotive Company (ALCO) C-425, on the first trip over new track made necessary due to the construction of the John Day Dam, May 1967. Photo by J. Vincent.

SP&S Last Spike Ceremony at Sheridan Point, March 11, 1908. Photo Art Studios photograph.

SP&S Last Spike Ceremony at Sheridan Point, March 11, 1908. Photo Art Studios photograph, from the Oregon Historical Society Collection.

SP&S mainline and siding along the Snake River, undated.

SP&S mainline and sidings with freight and work cars at Goble, Oregon, July 1968.

Early view of SP&S mainline east of Lyle, Washington. Track to the right was the former Columbia River & Northern Railway which connected with steamboats on the river, undated.

Postcard view of the business block and railroad tracks at Rainier, Oregon, undated.

A view of the SP&S mainline above Tongue Point, Oregon from the rear of a passenger train, January 13, 1952. Photo by John Labbe.

A view of an eastbound SP&S freight train east of Binghen-White Salmon, Washington, 1951. Photo by Photo-Art Commercial Studios.

A view of SP&S mainline one mile west of Lyle, Washington, undated. Photo by Kiser Photo Company.

Color postcard view of SP&S mainline and Columbia River one mile west of Lyle, Washington, postmarked May 30, 1917.

Color postcard view of SP&S mainline one mile west of Lyle, Washington, undated.

Early view of fill on SP&S mainline one mile west of Lyle, Washington along the Columbia River, undated.

A view of SP&S mainline tracks along the Snake River near Snake River Junction, Washington, undated.

Early view of the SP&S mainline near White Salmon, Washington, undated. Photo by Kiser Photo Company.

A view of SP&S mainline track in Devil's Canyon on the Snake River, undated. Photo by the Kiser Photo Company.

Color postcard aerial view of State Highway 14 and SP&S mainline along Columbia River, undated. This is a postcard image.

SP&S railroad tracks looking east from the Cape Horn tunnel, undated. Photo by Fred H. Kiser.

A view of SP&S railroad tracks 6 miles east of the Cape Horn tunnel, undated.

Color postcard view of SP&S track and the Columbia River near Underwood, Washington, 1912. This is a postcard image. Photo by the Kiser Photo Company.

Color postcard view of SP&S track and the Columbia River near Underwood, Washington, 1912, postmarked July 17, 1916 . This is a postcard image. Photo by the Kiser Photo Company.

Crew laying track on the SP&S at Stevenson, Washington, 1907.

SP&S track along the Columbia River with a view of Castle Rock (Beacon Rock), August 4, 1914. This is a postcard image.

From the top of Beacon Rock we see five Great Northern EMD GP9 diesel locomotives on freight train SWG as it heads to Vancouver, Washington. This train originated on the Santa Fe railroad in California. Bob Johnston Photograph.

SP&S track along the Columbia River with a westbound train at Beacon Rock, undated. Angelus Commercial Studio Photograph.

A view of SP&S track at Cooks, Washington with the steamboat 'Dalles City' on the Columbia River, undated.

Looking eastward at the tracks leading to the SP&S depot at Astoria, Oregon, September 1969.

SP&S track under construction around the Cascades of the Columbia, 1906.

A view of the washout of the SP&S mainline at North Portland during the Vanport flood, May 30, 1948. Photo by N. S. Westergard.

A view of track washout on SP&S Goldendale Branch at Milepost 21.7, January 1965.