Location.--Latitude 47°15'01", Longitude
122°14'33", in NE 1/4 SW 1/4 Section 1, Township 20 North,
Range 4 East, in Pierce County, Hydrologic Unit 17110014, on
downstream side of 8th street bridge, 3.5 mi north of Sumner, and at
river
mile 4.9. Drainage
area is 477 mi2. Datum of
gage is NGVD of 1929.