View of Mount Hood and the head of the Dalles on the Columbia River. Railroad tracks run alongside the river and then cross it in the distance. Loose duplicate plate in 7/1. Condition note: Exposure has faded and Mount Hood is not visible. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of Mount Hood and the Columbia River taken from the head of the Dalles. 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.

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.

View of Mount Hood and the Columbia River taken from the head of the Dalles. Loose duplicate plate in 5/7. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View looking up the Columbia River, taken from a rock bluff. There is a boat on the river. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Railroad tracks run along the base of a rock bluff bordering the Columbia River. Tunnel No. 3 is visible in the distance. Taken from the bank of the Columbia River. Loose duplicate plate in 5/7. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Railroad tracks run along the base of a rock bluff bordering the Columbia River. Tunnel No. 3 is visible in the distance. Railroad crossing in foreground. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Two men stand next to the railroad tracks at the base of a rock bluff on the Columbia River. Loose duplicate plate in 5/6. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View up the Columbia River, taken from over Tunnel No. 3. Railroad tracks run along the base of a rock bluff on the river. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

Railroad tracks run along the base of a rock bluff bordering the Columbia River. Taken from over Tunnel No. 3. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

A stream flows past rock bluffs. Taken from Tunnel No. 3 on the Columbia River Gorge. Loose duplicate plate in 5/6. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of a railroad track emerging from Tunnel No. 3 just above the Columbia River. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of the Columbia River and cliffs in the Columbia River Gorge. Loose duplicate plate in 5/6. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of Cape Horn on the Washington side of the Columbia River Gorge, looking down the Columbia River. There is a fence and large tree stump in the foreground. Loose duplicate plate in 5/1. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View down the Columbia River, with the foot of Mitchell's Point in the foreground. A railroad track goes around the foot of Mitchell's Point. Loose duplicate plate in 5/5. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View up the Columbia River to Mitchell Point in the distance. A large rock outcropping sits in the Columbia River in the foreground. Loose duplicate plate in 5/4. 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.

View of Horsetail Falls in the Columbia River Gorge. Misidentified on plate as Oneonta Falls. Loose duplicate in 5/4. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View of Multnomah Falls. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View out of the Oneonta Gorge, taken from within the gorge. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

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.

View up the Oneonta Gorge, taken from within the gorge. Loose duplicate plate in 5/3. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

View up the Oneonta Gorge, taken from a railroad crossing. 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.

A view of Oneonta Gorge in the Columbia River Gorge. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

A view of Oneonta Gorge in the Columbia River Gorge. Loose duplicate plate in 5/3. This plate is part of Carlton Watkin's "Sun Sketches of Columbia River Scenery" album.

A fishwheel on the bank of the Columbia River. 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.