Location.--Latitude 48°42'05", Longitude
119°26'30", in NE 1/4, SW 1/4, Section 27, Township 37 North,
Range 27 East, in Okanogan County, Hydrologic Unit 17020006, at
Hwy 97 crossing, at Tonasket, and 0.3 mi upstream from mouth. Drainage
area is 161 mi2. Elevation
of gage is 920 feet above NGVD of 1929.