Stereograph of the Oregon Steam Navigation Co.’s railroad tracks at the Upper Cascades, Skamania County, Washington Territory, looking west down the Columbia River from the Upper Block House, also known as Fort Lugenbeel, 1867

Duplicate of Stereograph 1266, on a different mount. Stereograph of the Oregon Steam Navigation Co.’s railroad tracks at the Upper Cascades, Skamania County, Washington Territory, looking west down the Columbia River from the Upper Block House, also known as Fort Lugenbeel, 1867.

Stereograph of the Oregon Steam Navigation Co.’s railroad tracks at the Upper Cascades, Skamania County, Washington Territory, looking west down the Columbia River from the Upper Block House, also known as Fort Lugenbeel, 1867

Duplicate of Stereograph 1266, on a different mount. Stereograph of the Oregon Steam Navigation Co.’s railroad tracks at the Upper Cascades, Skamania County, Washington Territory, looking west down the Columbia River from the Upper Block House, also known as Fort Lugenbeel, 1867.

Stereograph view of the Upper Block House, also known as Fort Lugenbeel, at the Upper Cascades, Skamania County, Washington Territory, 1867.

Duplicate of Stereograph 1271, on a different mount. Stereograph view of the Upper Block House, also known as Fort Lugenbeel, at the Upper Cascades, Skamania County, Washington Territory, 1867.

Stereograph view of the Upper Block House, also known as Fort Lugenbeel, at the Upper Cascades, Skamania County, Washington Territory, 1867.

Duplicate of Stereograph 1271, on a different mount. Stereograph view of the Upper Block House, also known as Fort Lugenbeel, at the Upper Cascades, Skamania County, Washington Territory, 1867.

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 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 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 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.