Location.--Latitude 48°41'53", Longitude
121°12'25", in NW 1/4 Section 14, Township 37 North, Range 12
East, in Whatcom County, Hydrologic Unit 17110005, Ross
Lake National Recreation Area, at Gorge Dam on Skagit River, 2.4 miles
upstream from Gorge Powerplant at Newhalem, and at river mile
area is 1,159 mi2, includes 400 mi2 in
Canada. Datum of
gage is City of Seattle datum.
15-minute precipitation data for this station are
temporary and will only be displayed for 120 days. Time
series of 15-minute or cumulative daily values will NOT be
available for retrieval following the 120-day display period.
Although the instrumentation is calibrated at least once/year, the
temporary classification means that documented routine inspections
and other quality assurance measures are not performed that would
make the data acceptable for archival, retrieval, or future use in
general scientific or interpretive studies.
Normal lake elevation varies
from 865 feet to 890 feet (top of gates), with lowest outlet at 760
feet and crest of the spillway at 825 feet.