﻿196 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. /S 



are again exposed in later years when the stream forms a new channel 

 or the flood waters erode the banks. At Pateros, the confluence of 

 the Methow with the Columbia, seven layers of l)urn with intervening 



Fig. 193. — Tipi used l^y the Wanapum or Columbia River Indians at the 

 Lower Falls of the Yakima River, Benton County, Washington. The 

 habitation is a temporary one and is constructed of tule reeds covered with 

 skins and burlap. The old type of semisubterranean pit house was aban- 

 doned before the time of the Lewis and Qark expedition. 



sedimentary deposits are exposed on the flanks of a little island formed 

 on the Methow side of the channel. 



