Approximately "fifty miles long and fifteen miles wide," Big Hole Prairie "is hemmed in by high mountains on every side except the southeast where Wisdom River passes out from it." Plate XLIX.
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.
Expeditions & surveys; Railroad surveys; Bison; Cheyenne River; Lake Jessie
Ascending a high hill after crossing the Sheyenne (Cheyenne) River, the expedition looked out upon an estimated 200,000 buffalo inhabiting the plains separating them from Lake Jessie. Plate X.
Chemakane Mission named for a nearby spring, was "occupied by Messrs. Walker and Eel; but, in 1849, in consequence of the Cayuse difficulties, it was abandoned." "The site of the mission is five miles from the Spokane River, in an...
Confluence of the Salmon, entering from the right, and the Snake, straight ahead. Looking upstream from a boat on the Snake, immediately below the mouth of the Salmon River.
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction; Construction equipment--Washington (State)--Grand Coulee Dam;
Demolition of a tower which carried the conveyor belt for aggregate across the Columbia River below the Grand Coulee Dam site.
Drawing depicts Milk River with Bears Paw Mountain in the distance. Bears Paw, "a broad and rugged mountain upheaval, stretches from Milk River to the Missouri." Plate XXII.
Expeditions & surveys; Railroad surveys; Salish Indians; Hellgate River (Mont.)
Drawing depicts the camp of Victor, a Flathead Chief. The camp sits on the Hell-Gate River "three miles above its junction with the Bitter Root." Plate XXXI.
Exploration party moving up the Sun River valley "in the direction of the pass between the Crown Butte and the Rattlers, prominent landmarks west of Sun River and visible at a great distance." Plate XXIX.