Distant view of Castle Rock, also known as Beacon Rock, across the Columbia River on the Washington side of the Columbia River Gorge. Taken from the McCrary farm in Oregon. OHS Collection includes 1 duplicate of this mammoth plate on a different mount.

A steam locomotive operated by the Oregon Steam and Navigation Company on railroad tracks in the Washington Territory of the Columbia River Gorge. Upper Block House, also known as Fort Lugenbeel, is on the left while a steamboat on the Columbia River is visible in the distance on the right.

View of Mt. Adams, taken from Sunset Hill, south of The Dalles. The Columbia River is in the foreground.

Left panel of Carleton Watkins' 3-part panorama of Portland, Or., 1867. Mount St. Helens is in the background. Duplicate of Mammoth 402, on a different mount.

View of a distant Mount Hood, rising over the Columbia River. In the foreground, long fences encircle a property with several wooden structures. Taken from the south side of Government Island.

View of Cape Horn on the Washington side of the Columbia River Gorge, looking up the Columbia River. OHS Collection includes 1 duplicate of this mammoth plate on a different mount, with the alternate title, "Cape Horn Below the Cascades."

View of the Oregon Steam and Navigation Company's steamboat "Oneonta" at the Upper Landing of the Cascades, Washington Territory, 1867. A steam locomotive pulls a train in the background.

View of the Cascade Rapids on the Columbia River, taken from the Oregon side of the Columbia River Gorge. Upper Block House, also known as Fort Lugenbeel, is visible in the background on the left.

Left panel of Carleton Watkins' 3-part panorama of Portland, Or., 1867. Mount St. Helens is in the background.

Left panel of Carleton Watkins' 3-part panorama of Portland, Or., 1867. Mount St. Helens is in the background. Duplicate of Mammoth 402, on a different mount.

View of Cape Horn on the Washington side of the Columbia River Gorge. Taken from the east at John Stevenson’s property. Log cabin and fence in the foreground. OHS Collection includes 1 duplicate of this mammoth plate on a different mount, with the alternate title, "Cape Horn On Columbia River."

View of Castle Rock, also known as Beacon Rock, on the Washington side of the Columbia River Gorge. OHS Collection includes 2 duplicates of this mammoth plate on different mounts.

View of the Middle Block House, also known as Fort Rains, on the Columbia River. OHS Collection includes 1 duplicate of this mammoth plate on a different mount.

View looking southwest down the Columbia River from the Middle Block House, also known as Fort Rains, in the Washington Territory. The Eagle Creek area is visible in the distance on the Oregon side of the river.

View of the Upper Block House, also known as Fort Lugenbeel, on the Columbia River in the Columbia River Gorge. Other buildings and a railroad bridge are also visible. OHS Collection includes 2 duplicates of this mammoth plate on different mounts. One duplicate bears Watkins' signature on the back and has the alternate title, "Upper Blockhouse, Cascades."

View of Cape Horn on the Washington side of the Columbia River Gorge, looking up the Columbia River. Loose, cropped duplicate plate in 5/1. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Left panel of Carleton Watkins' 3-part panorama of Portland, Or., 1867. Mount St. Helens is in the background. Duplicate of Mammoth 402, on a different mount.

View of the former garrison at Fort Cascades, near the Cascades townsite on the Columbia River in Skamania County, Washington Territory, 1867. Castle Rock, also known as Beacon Rock, is visible in the distance.

View of the Columbia River Gorge from the Upper Block House, also known as Fort Lugenbeel, in the Washington Territory. View looks down the Columbia River. Railroad tracks border the river.

View of a distant Mount Hood, rising over the Columbia River. In the foreground, long fences encircle a property and a log cabin. Taken from the south side of Government Island. Loose, cropped duplicate plate in 5/1. Condition note: Exposure has faded and Mount Hood is barely visible. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Boudoir card of a panoramic view of Seattle, taken from Denny's Hill in 1882. This is the 3rd section of this panoramic view.

Boudoir card of a view of Port Gamble, Puget Sound, Washington Territory. There are several ships in port, and logs float on the bay in the foreground.

Boudoir card of islands in the Columbia River, near the Upper Cascade Rapids. Part of a railroad is visible in the foreground. Buildings are visible on the opposite shore. Photograph is inscribed incorrectly with the date "1867."

Photo album, "Sun Sketches of Columbia River Scenery," containing photos by Carleton E. Watkins. Album page bears signature of Charles H. Prescott, dated 1884. Prescott was the original owner of this album, and manager of the Oregon Railroad and Navigation Co. A small biographical note appears alongside his signature. There is also an inscription from John Neilson Barry (b.1870), an Episcopal clergyman and historian from Portland, Or., to Julius L. Meier, governor of Oregon from 1931-1935. Inscription reads, "To the beloved Governor of Oregon Julius L. Meier whose noble and self sacrificing efforts in promoting the welfare of the people of Oregon have made him a public benefactor. J. Neilson Barry." Plates O.1. and O.45. are arranged out of numerical order. Plates O.28 and O.29 are not included.

View of Castle Rock, also known as Beacon Rock, on the Washington side of the Columbia River Gorge. Photo taken from the Oregon side of the Columbia River Gorge. There are 2 structures, possibly houses, on the shore of the Columbia River. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Boudoir card of a view of Port Gamble, Puget Sound, Washington Territory. There are several ships in port, and logs float on the bay in the foreground.

The Cascades rapids of the Columbia River. The blockhouse at Fort Cascades is in the background. Loose duplicate plate in 7/1. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of Castle Rock, also known as Beacon Rock, on the Washington side of the Columbia River Gorge. Photo taken from up river on the Oregon side of the gorge. Railroad tracks in the foreground.