Expeditions & surveys; Railroad surveys; Saint Paul (Minn.)
"St. Paul is beautifully located upon a high bluff on the east bank of the river, and is rapidly growing in size and importance. It is quite a business place, everything indicating vigor and activity. Among its prominent buildings are the...
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...
Expeditions & surveys; Railroad surveys; Fort Walla Walla (Wash.)
Fort Walla Walla was first built along the Columbia River by the Northwest Company to act as a trading center. A second fort was built by the Hudson Bay Company prior to 1831 and served as a frontier post protecting their interests. This was...
"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...
Lieutenant Mullan's party leaving the Bitter Root Valley and heading "down the river to the Lou-Lou Fork, which is fifteen yards wide and two feet deep at its mouth. Its valley is five hundred yards wide, and the mountains on each side are...
"The altitude of this butte, as determined by barometric measurement, is 281.8 feet above the level of the Shyenne (Cheyenne) River." Named for "an engagement between some half-breeds and Sioux, in which one of the former, by the...
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.
"This valley for the most part is wide and open." There are "spurs separating it from the Hell-Gate Valley on the south," and "separate on the north the various tributaries flowing into the Blackfoot River." Plate LXII.
Dams -- Montana; Dam construction -- Montana; Hungry Horse Dam
Photograph of construction workers sand blasting at the construction of the Hungry Horse Dam. The dam was built as part of the Hungry Horse Project to provide hydroelectric power and flood control. At 564 feet, the dam is the 10th highest in the...
Dams -- Montana; Dam construction -- Montana; Hungry Horse Dam
Photograph of construction workers pouring cement at the Hungry Horse Dam construction. The dam was built as part of the Hungry Horse Project to provide hydroelectric power and flood control. At 564 feet, the dam is the 10th highest in the U.S....
Dams -- Montana; Dam construction -- Montana; Hungry Horse Dam
Hungry Horse Dam is on the South Fork of the Flathead River in Montana. The dam was built as part of the Hungry Horse Project to provide hydroelectric power and flood control. At 564 feet, the dam is the 10th highest in the U.S.
The lock is a single lift type, 86 feet wide and 683 feet long, with a 15-foot minimum depth over the sills. The vertical lifts average 75 feet. The lock is located on the Washington side of the Columbia River.
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.