SP&S diesel locomotives Number 150 and 151, EMD GP9's, with passenger excursion at Goldendale, Washington, September 25, 1966.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S diesel locomotive Number 303, an American Locomotive Company (ALCO) C-424, leads a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S an American Locomotive Company (ALCO) 'Century Series' diesel locomotives with a freight train on the Fort Wright trestle, undated. Photo by Robert Johnston.

SP&S trestle across Doane's Lake, July 12, 1906, from the Oregon Historical Society Collection.

SP&S diesel locomotive Number 152, an EMD GP9, with a National Railway Historical Society special convention train on the Blind Slough drawbridge, September 1965.

A view of the SP&S drawbridge at Blind Slough, Oregon, undated.

Sketch of proposed new Union Depot, April 1882, from the Oregon Historical Society Collection.

New SP&S Hoyt Street Roundhouse under construction at Portland, February 23, 1943.

Aerial view of the flooded stockyards at North Portland, 1948.

SP&S yard at East Portland, east side of the yard, view north, 1928, from the Oregon Historical Society Collection.

SP&S freight house at East Portland, east side of the yard, undated, from the Oregon Historical Society Collection.

SP&S high trestle by the Snake River near Farrington, Washington, undated. Photo by Angelus Commercial Studio.

SP&S Hoyt Street Roundhouse turntable in Portland, Oregon being replaced by new 110 foot long turntable, 1944.

SP&S Hoyt Street Roundhouse; the new Hoyt Street Roundhouse in Portland, Oregon, 1944.

SP&S Hoyt Street Roundhouse; view of roundhouse and turntable in Portland, Oregon, undated.

Color postcard view of SP&S Klickitat River Bridge, undated.

SP&S lunch room at Fallbridge (Wishram), Washington, 1925.

A view of the SP&S lunch room at Wishram, Washington, undated.

Early view of Lyle, Washington, undated.

A view of SP&S machine shop interior at Vancouver, Washington, undated. Photo by J. Mills.

A view of SP&S machine shop interior at Vancouver, Washington, undated. Photo by J. Mills.

A view of SP&S machine shop interior at Vancouver, Washington, undated. Photo by J. Mills.

A view of the SP&S Hoyt Street freight house in Portland, Oregon, 1928, from the Oregon Historical Society Collection.

A view of the SP&S North Bank freight house in Portland, Oregon, undated.

Early overhead view of the SP&S Fallbridge, Washington (later Wishram) engine house and yard, undated.

Overhead view of the SP&S Wishram, Washington engine house and the yard as the westbound ?Columbia River Express? has just departed the depot at Wishram, circa. 1947-1952.

Overhead view of the SP&S Wishram, Washington engine house and yard, undated.

Postcard view looking down on Fallbridge, Washington (later Wishram), postmarked February 17, 1913.