Expeditions & surveys; Railroad surveys; Canyons; Grand Coulee (Wash.)
"The Grand Coulee is about ten miles wide where it opens on the Columbia River at its northern end, which is a hundred feet above the water, and gradually widens toward the south; its walls, eight hundred feet high are formed of solid basaltic...
A policeman and group of men appear to be investigating something in the charred rubble along “B” Street in Grand Coulee after the building was destroyed by fire.
A portion of the crowd at Coulee Dam, Washington listening to President Harry S. Truman speaking at the dedication of Grand Coulee Dam and Lake Roosevelt.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Concrete construction; Gravel.
Aerial view of the Brett gravel pit. This was a source of aggregate for concrete used in the construction of the Grand Coulee Dam. View is looking generally south.