Expeditions & surveys; Railroad surveys; Clark Fork River (Mont.); Flathead Lake (Mont.)
The Clark Fork River, "being much cut up by coulees, have the appearance of that on the Upper Missouri. The soil is principally a light yellow clay; the stream here is two hundred yards wide, swift and deep, sparsely timbered with pine and...
Expeditions & surveys; Railroad surveys; Waterfalls; Cliffs; Great Falls (Mont.)
The cliffs at the falls are about "one hundred fifty to three hundred feet deep with a steep descent to within fifty feet of the bottom, and for the remaining distance perpendicular walls of red sandstone." "Above the falls the banks...
Grand Coulee Dam (Wash.);Hydroelectric power plants -- Washington (State);Dams -- United States -- Design and construction;Cofferdams -- Design and construction.
The preparation of the southern end of the dam site has had most of the loose rock removed, and the coffer dam complete. The work of removing soil and loose rock on the north end of the dam was still under way.
Expeditions & surveys; Railroad surveys; Teton River (Minn.); Valleys
The Teton Valley, "a vast plain, descending towards the east, the soil of inferior quality, and the dry vegetation indicated the change in the climate observed in going over the high, dry plains towards the Missouri." "The valley...