Location.--Latitude 47°58'28", Longitude
121°41'10", in NW 1/4 Section 29, Township 29 North, Range 9
East, in Snohomish County, Hydrologic Unit 17100106, on
right bank at Culmback Dam on Sultan River, 1.7 miles downstream from
South Fork, 7.8 miles north of Startup, and at river mile
16.5. Drainage
area is 68.3 mi2. Datum of
gage is NGVD of 1929, levels by Snohomish County P.U.D. No. 1.