Construction of the Cascade Locks on the Columbia River, circa 1882-1883. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of the Tooth Bridge, part of the Oregon Steam Navigation Co.'s Oregon Portage Railroad in the Columbia River Gorge. The Cascade Mountains rise in the background. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of the Tooth Bridge, part of the Oregon Steam Navigation Co.'s Oregon Portage Railroad in the Columbia River Gorge. The bridge crosses Eagle Creek in the distance. The calm waters of the Columbia River Channel reflect surrounding trees. Loose duplicate plate in 5/2. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

A fishwheel floats on the Columbia River in the Columbia River Gorge. A man stands on the attached vessel. Loose duplicate plate in 5/3. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Railroad tracks just outside Oneonta Gorge. Photograph taken from the mouth of the Oneonta Gorge. Loose duplicate plate in 5/3. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of a railroad track crossing a lake in the Columbia River Gorge. Loose duplicate plate in 5/4. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Platinum print of the Columbia River with mountains visible in the distance. The photograph has been attributed in publications to both Sarah Hall Ladd and LIly E. White.

Platinum print of the Columbia River with mountains and fog visible in the distance. The photograph has been attributed in publications to both Sarah Hall Ladd and LIly E. White.

Platinum print of mist on the Columbia River. Attributed to Sarah Hall Ladd.

Platinum print of the submerged forest on the bank of the Columbia River. Attributed to Sarah Hall Ladd.

Platinum print of the Columbia River with mountains partially obscured by fog in the distance. Signed, "Lily E. White," on the matting below the lower right corner of the print. This photograph is taken from the same vantage point and likely near the same time as the photograph on Plate 15 of Album 201.

Platinum print of an unidentified person standing in a rowboat on the Columbia River. Castle Rock (today known as Beacon Rock) is visible in the distance. Handwritten inscription on the back of the print reads, "Twilight on the Columbia - Castle Rock in the Distance." This photograph has been attributed to both Sarah Hall Ladd and Lily E. White. Signed, "Copyrighted by Lily E. White," in the lower right corner of the print.

Platinum Print of a houseboat moored at the base of Castle Rock (today known as Beacon Rock) on the Columbia River. Handwritten inscription from the back of the print reads, "Castle Rock - Columbia." Signed, "Copyrighted 1902, Lily E. White," in the lower right corner of the print.

Platinum print of Mount Hood taken from the Washington side of the Columbia River with Hood River visible in the foreground. Handwritten inscription from the back of the print reads, "Mt. Hood at Hood River." The print is unsigned but attributed to Lily E. White.

Platinum print of Oneonta Gorge. A group of unidentified people are visible in the far end of the gorge. Handwritten inscription on the back of the print reads, "Oneonta Gorge Looking In." A stamp in the lower left corner of the print reads, "Copyright 1901 Will H. Walker."

Platinum print of a sandy beach on the shore of the Columbia River with Mitchell's Point visible in the distance. Handwritten inscription on the back of the print reads, "Mitchell Point." Signed, "Lily E. White," in the lower right corner of the print.

Platinum print of mist on a hillside viewed from across the Columbia River. Handwritten inscription on the back of the print reads, "Scarf of Mist - Columbia." This print is sometimes also printed as, "Up the Columbia." Signed, "Lily E. White." in the lower right corner of the print.

Platinum print of the a boat with "Lyle" painted on the back moored along the banks of the Columbia River. Handwritten inscription on the back of the print reads, "Columbia River 10 Miles from the Dalles." The print has also been published as, "Lyle on the Columbia." This photograph has been attributed in publications to both Sarah Hall Ladd and Lily E. White. Signed, "S. H. L.," in the lower right corner of the print.

Platinum print of storm clouds gathering over hills with the Columbia River in the foreground. Handwritten inscription on the back of the print reads, "Storm from the Sea - On the Columbia." Signed, "Copyrighted by Lily E. White," in the lower right corner of the print.

Photograph of a crowd of people walking up a ramp next to an SP&S train at a train station. The train has at least 2 Pullman cars, visible on the right. Typed writing on the back of the print reads, "File 87-80. United Nations Victory Special Train at North Bonneville Station, SP&S Railway Company, June 29, 1945. Train carried over 200 delegates enroute home from United Nations Conference held San Francisco April 25 to June 26, 1945." Stamp on the back for Les T. Ordeman Photography.

View of the Oregon Trunk (OT) Rail Bridge across the Columbia River near Wishram Washington. The bridge is also known as the Celilo Bridge. The photograph is taken from the bank on the Oregon side of the river and captures almost the full span of the bridge. A portion of Celilo Village is visible in the foreground. The community of Skien is visible in the distance at the base of the bridge on the Washington side. A note on the back of the photograph reads, "File No. 68 - OT/Celilo Bridge across Columbia River, near Wishram, Wash."

Photograph showing construction workers holding picks on a steep hillside near Carson, Washington. Rocks and dirt fall to the ground beneath them. Handwritten note on the back of the print reads, "Trapping at Carson Landing, 1906."

Photograph of 4 railroad construction workers working in a trench at the base of a graded hillside in Carson, Washington. They work next to a track that transports construction materials. To the right is the Columbia River and a view of a large mountain on the Washington side of the gorge. Handwriting on the bottom of the print reads, "1516, Finishing Station 1515, June 23 '06, P.&S. Ry." Handwriting on the back reads, "Carson Landing."

Photograph of a westbound train traveling on the Washington side of the Columbia River in the Columbia River Gorge. The train has a steam locomotive and has just traveled through a tunnel. To the right of the train, view looks east up the river and both sides of the gorge are visible. There is some snow on the ground. Typed note on the back of the print reads, "Westbound SP&S train along Columbia River."

Photograph of 2 groups of men facing each other at a railroad construction site on the Washington side of the Columbia River Gorge. The men on the left stand around a railroad track under construction and watch as a construction worker clears the land. The men on the right appear to be construction workers, and they look up at the other group. Homesteads are visible in the background. Handwritten note on the back of the print reads, "Troubles between the P. & S. and C. Valley men at Carson, Wash." Second note reads, "Near Monaghan Homestead. Return to Traffic Dept., SP.S Ry."

7 pages of photographs show the areas under consideration for inclusion in a proposed interstate park in the Columbia River Gorge. 32 photos show the character of the terrain, scenic values, and existing development in the Cape Horn, Beacon Rock, Little White Salmon River, and Latourell areas of the gorge.

Photograph of a model of the Bonneville Dam. The model was built by U.S. Engineers, and labels mark the main dam, spillway, fish elevators, power house, and more. A railroad in the foreground of the model is labeled "Spokane, Portland & Seattle Ry." Additional writing on the print indicates the quantities and costs involved in building the dam. Copyright on bottom of print for Photo-Art Commercial Studios in Portland.

Photograph of a portion of the Bonneville Dam under construction. The mountains of the Columbia River Gorge are visible in the background.