Expeditions & surveys; Railroad surveys; Fort Okanogan (Wash.)
"Fort Okinakane (Okanogan) is an old and ruinous establishment of the Hudson Bay Company." "The character of the Columbia along the western border of the Spokane Plain and as far as Fort Okinakane (Okanogan) is described as follows:...
"There are two principle falls, one of twenty feet and the other of from ten to twelve feet; in the latter, there being a perpendicular fall of seven or eight feet; for a quarter of a mile the descent is rapid, over a rough bed of rocks, and...
Architectural drawing of the McNary Dam, a 7365 foot hydroelectric dam that spans the Columbia River. McNary Dam is located one mile east of Umatilla, Oregon.
Concrete construction; Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Silos.
Cement storage silos and unloading platform at Grand Coulee. The cement was pumped from this location to the mixing house at the dam, a distance of over a mile.
Expeditions & surveys; Railroad surveys; White Bear Lake (Minn.)
White Bear Lake, "a beautiful sheet of water, bordered with timber, about fourteen miles long and two wide, with high swelling banks running back a mile or so, and rising to the height of about one hundred and fifty feet." Plate V.