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...
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.
Expeditions & surveys; Railroad surveys; Columbia River; Cascade Falls
The Cascade rapids, sometimes referred to as the Cascade Falls. This is an area of rapids in the Columbia River where travelers by boat along the river were forced to either portage boats and supplies or pull boats up with ropes. Plate XLV.
Expeditions & surveys; Railroad surveys; Columbia River; Channels; Indian encampments; Canoes; Dalles (Or.)
The Dalles is a narrow place in the Columbia River, where the channel has been worn out of the rocks, below which about ten miles, is the mouth of the Klikitat River. Drawing shows an Indian encampment on the bank and a canoe on the water. Plate...