From the annual report of N. Michler, Corps of Engineers, for the fiscal
year ending June 30, 1875, in a section entitled "Improvement of the
Upper Columbia and Snake Rivers, Oregon, and the Territories of
Washington and Idaho"
I skipped a couple of pages where he details rocks that he removed from rapids in the Lower Snake
After leaving Texas Creek, and before arriving at Lewiston, some interesting settlements and Indian villages are observable from the boat, and worthy of notice. Penawa, about fifty miles below the town, is the best improved place on the river since entering it; there are men, women, and children. The fields are fenced in and cultivated; extensive flats and a beautiful grazing country exist, but there is no timber. A large number of horses and cattle are seen upon the hillsides. At the mouth of Penawa Creek is an Indian village, only temporarily occupied, however, as the occupants are migrating, existing on fish and such game as they can procure; they raise large herds of ponies. At Alenota Creek is another small settlement, containing some few buildings, and is a landing for a very considerable section of country. Alpoway is an Indian village, twelve miles below Lewiston; it was established by the missionaries a great many years ago. An old orchard, the trees regularly set out, still flourishes at the mouth of the creek. The Indians of the Nez Perces and Coeur d' Alene tribes, have some fine farms on the Clearwater, extending for thirty miles above its mouth. Some fields are planted with corn. Owing to the close proximity of this section to the Blue Mountains, more rain falls, averaging about two inches per month, and the vegetation appears more fresh and green than on the lower portions of the river. In winter, scarcely a foot of snow covers the earth at any time and then very seldom; it rapidly disappears under the mild influence of the prevailing northerly winter winds, called by the natives, "chinook." A short distance below Alpoway is Granite Point; this is the only spot where that rock is known to appear at the surface along this lower section of the river. The country is of volcanic formation, with terraces of basaltic trap cropping out.
N. Michler, Corps of Engineers, Messages and Documents of the War Department, 1875-1876, Volume two, Page 778