Location.--Latitude 48°56'48", Longitude
119°51'56", in SW 1/4 SE 1/4 Section 6, Township 28 North,
Range 24 East, in Chelan County, Hydrologic Unit 17020005, at
powerhouse of Wells Dam, 0.7 mi northeast of Azwell, and at mile 515.9.
Drainage
area is 86,100 mi2. Elevation/Datum
of gage is 700 feet above NGVD of 1929.