Train tracks cross a bridge that spans a ravine in the Silverton, Oregon area. A forest can be seen on the opposite side of the bridge.

Photograph of a trench that was dug by the Spokane Portland & Seattle Railway Company through North Portland between the Columbia and Willamette Rivers. Railcars can be seen on tracks in the trench. The construction project was completed in 1908. The text “2 —“ is written on the negative and is visible in the lower right corner of the image.

A group of men builds a railroad track on North Water Street in Silverton, Oregon. The men hold shovels and stand in a dirt trench. Railroad ties can be seen on the ground nearby. Three horse-drawn wagons are parked next to the men.

Employees of the Silver Falls Timber Company use a train engine to build a new track in a forested area near Silverton, Oregon. Two men look out from inside the engine cab while two other men stand alongside the track. A flatbed car is in front of the engine and is loaded with barrels and what appear to be rails.

A view of the Cascade Highway running through countryside. An elevated railroad track crosses over the road. An automobile can be see driving on the road.

Exterior view of the Southern Pacific train depot in Salem, Oregon. People can be seen waiting outside the front doors and train tracks are visible in the foreground of the image.

A photograph of the Southern Pacific Depot in Salem. Automobiles are visible parked around the building and a train is visible behind.

View of a burned forest that had previously been logged in the Silverton, Oregon area. Charred tree trunks and stumps can be seen throughout the landscape. In the foreground is a burned trestle bridge with damaged train tracks on it. Running parallel to that is a second set of undamaged train tracks.

Train tracks running through a forest that were damaged in a forest fire outside Silverton, Oregon. The wooden railroad ties are charred and the metal rails are warped and bent. The surrounding trees are also burned.

A railroad turntable being built at a new roundhouse for Spokane Portland & Seattle rail yard on 9th Ave. in Portland. A track can be spanning the turntable area, with several people standing around the sunken area. Cranes can be seen at either side of the frame (negative 1 of 9).

Workers under a newly installed turntable track at a roundhouse being constructed at Spokane Portland & Seattle Railway rail yard on 9th Ave. in Portland. The tracks can be seen above the sunken hole, where workers are digging with shovels (negative 6 of 9).

A crowd of people watch as a turntable is built at a new roundhouse for Spokane Portland & Seattle Railway rail yard on 9th Ave. in Portland. A track can be spanning the turntable area, with with hoisting cranes above (negative 3 of 9).

Black and white photograph of railroad tracks and a flooded building. Only the pointed roof of the building is visible. Men stand on the railroad tracks. In the background, other flooded buildings are visible. The photograph is mounted on a grey mat that was once bound into an album. Handwritten text below the photograph reads "Flood of Feb. 1890". The photograph was taken in February, 1890, when excessive rain and unusually warm weather caused the Willamette and Columbia Rivers to flood.

Black and white photograph of buildings and railroad tracks in east Portland during the 1890 flood. Floodwater covers most of the train tracks and logs and other debris has piled up beside them. Several buildings are clustered together in the distance. In the background, the Willamette River and Downtown Portland are visible. It is taken from a boardwalk or raised sidewalk. The photograph is mounted on a grey mat that was once bound into an album. Handwritten text below the photograph reads "East Portland, Ore. Feb-5-90". The photograph was taken in February, 1890, when excessive rain and unusually warm weather caused the Willamette and Columbia Rivers to flood.

Platinum print of the Columbia River with a train trestle visible in the distance. Attributed to Sarah Hall Ladd.

Photograph of flooding at Union Station in Portland, Oregon during the Vanport Flood, 1948. Handwritten note on back reads, "Jerry," indicating this was likely taken by Jerry Jiro Yasutome when he was a student at the Northwest School of Photography.

Photograph of a steam locomotive in flood water just outside Union Station in Portland, Oregon during the Vanport Flood. Widespread flooding is visible in the area around Union Station. A long line of sandbags is visible on the left. Handwritten note on back indicates this was taken May 31, 1948. Taken by an unidentified student at the Northwest School of Photography.

Rows of railroad cars sit on the tracks at a railroad yard at McCormick Dock. Looking south toward the Steel Bridge. Several trucks are parked at a neighboring steamship company.

Negative of a photographic postcard showing the confluence of the John Day River and the Columbia River in Oregon. View west down the Columbia River and Mount Hood in the distance. A railroad bridge crosses the John Day River, though the river itself is not visible. There are railroad tracks in the foreground. Handwriting on negative reads, "Mouth of John Day Riv. - Mt. Hood in distance. Christian 11-998."

Photograph of the Portland Zoo Railway station at the 1959 Oregon Centennial Exposition grounds in North Portland. Today, this is the site of the Portland Expo Center. A sign on top the building reads "Oregon Railroads" and there are smaller signs for Spokane, Portland & Seattle Ry., Northern Pacific Railway, Union Pacific Railroad and other rail lines. A small portion of the Zooliner train is visible on the left. The Oregon state flag flies above the building.

Transcription from slide: “Material Yards, Yaquina, Ore.”

Photograph of workers working on wheels and machines in an SP&S railroad shop. Handwritten note on the back of the print reads, "Engine truck, changing wheels and traction motors." Second handwritten note reads, "Industrial as is, 4 col. - industrial issue - Larry."

Photograph of a group of 30 - 40 people standing next to a locomotive on the Oregon Trunk Railway. The locomotive pulls a train under an arch that reads, "Welcome: Madras the Gateway to Central Oregon." The train engineer and other workers lean out of the locomotive cab. A few railroad construction workers stand to the left where a second set of railroad tracks is under construction. A label in the middle of the photograph reads, "Oregon Trunk Ry. Feb 15th 1911." Label at the bottom of the print reads, "Photo by O. Hedlund, Madras, Ore." Handwritten note on the back reads, "High & Mighty, p. 205."

Photograph of railroad construction workers standing in an unfinished rock cut. Steep rock cliffs rise all around them and one person stands on the cliff above them. Railroad tracks, still under construction, end at the rock face behind the workers. Taken on the Washington side of the Columbia River Gorge. Handwritten note on the back of the print reads, "Rock cut at 1488." Second note reads, "MP 52.5 near Carson, tracks at left to river's landing."

Photograph of a large pile of rock and debris formed by a blast at a railroad construction site on the Washington side of the Columbia River Gorge. On the right, a person stands on the edge of a cliff, above the debris. A railroad is visible behind the debris. There is a large rock formation behind the railroad on the left. Handwritten note on the back of the print reads, "Shot from 400 kegs powder at 'Briton's Peak' Smith Creek near Carson landing."

Photograph of 4 railroad construction workers standing in an unfinished rock cut. Steep rock cliffs rise all around them. Railroad tracks, still under construction, end at the rock face behind them. Taken on the Washington side of the Columbia River Gorge. Handwritten note on the back of the print reads, "Rock cut at 1488 near Carson landing." Second note reads, "Return to Traffic Dept., SP.S Ry."

Photograph of Millen Van Hoogstraaten, conductor for the Portland Symphony Orchestra, standing on a platform at a train station. He wears a trench coat and hat and carries a bag in his right hand. A train is visible behind him. Handwritten note on the back of the print reads, "Millen Van Hoogstraaten, 1929, conductor, Portland, Symphony."