APPENDIX. 483 
of the Territory, has its mouth near latitude 49°. McGil- 
livray’s or Flat Bow River rises and has its mouth in British 
Columbia, but two hundred miles of its course are in Washing- 
ton. Among the noteworthy tributaries of the Snake are the 
Salmon, the Clearwater (styled Kooskooske on some maps), 
and the Pelouse. The distance from the mouth of the Snake 
to that of Clark’s river is three hundred miles, in which 
distance no stream worthy of note save the Spokane, and 
that not a large river, enters the Columbia from the east. 
The Okinagan, an outlet of Lake Okinagan, runs into the 
Columbia from British America. The main streams running 
from the east slope of the Cascade Mountains to the Columbia 
are the Yakima and Wenatchee, whose valleys are so far 
chiefly notable for their auriferous deposits and hostile Indians. 
The Klickatat River, fed by the snows of Mount Adams, runs 
southward, and has its mouth near the Dalles. West of the 
Cascade Mountains, the Cathlapootl and Cowlitz Rivers are the 
only streams of note entering the Columbia. The Nisqually, 
Puyallup, White, Green, Cedar, Snoqualmie, Squamish, Sto- 
lukwamish, and Skaget Rivers pour down immense bodies of 
water from the west slopes of the Cascade range to Puget 
Sound and the Gulf of Georgia. The Skaget River rises north- 
east of Mount Baker, and, after running round the east, south, 
and west bases of the mountain, becomes a very large river, and 
might be navigated by large vessels, were it not for a bar at its 
mouth, and rafts of driftwood which have become fastened 
between its banks. None of the other streams flowing into 
Puget Sound are navigable, unless very near their mouths in 
tidewater. The rivers running westward to the Pacific are 
the Willopah, which has its mouth in Shoalwater Bay; the 
Chehalis, which falls into Gray’s Harbor; the Quiniult, and 
some other streams near Cape Flattery, of which little is 
known. The Chehalis has been navigated by schooners for 
twenty-five miles from its mouth.—Washington possesses a 
great multitude of harbors, perhaps more than any other 
country of equal extent on the globe. Puget Sound, which 
