Location.--Latitude 46°22'19", Longitude
122°34'40", in NW 1/4 NW 1/4 Section 8, Township 10 North,
Range 2 East, in Cowlitz County, Hydrologic Unit 17080005.
Drainage
area is 146 mi2, revised. Elevation
of gage is 700 feet above NGVD of 1929. To convert to North American
Vertical Datum of 1988, add 3.26 feet (USGS Level 1 GNSS survey as per
USGS T&M 11-D1).