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Location.--Latitude 46°20'02", Longitude 122°50'20", in NW 1/4 SW 1/4 Section 20, Township 10 North, Range 1 West, in Cowlitz County, Hydrologic Unit 17080005, on right bank 10.7 mile downstream from confluence of North and South Forks, 2.9 miles northwest of Silver Lake, and at river mile 6.5. Drainage area is 496 mi2, see notes on drainage area in the annual data report (PDF). Elevation of gage is 160 feet above NGVD of 1929, from topographic map.
Maps.--Locate this station on a map of the basin (PDF) or on a map of Mount St. Helens.
Additional Data and Information.--Station data inventory, information, annual data report, and latest shifted rating.
Flood Stage.--The National Weather Service Flood Stage for this station is 25.0 feet.
Cooperation.--Funds for the operation of the gage and telemetry equipment, and production of the data are provided by Mount St. Helens Monitoring Network at the Cascades Volcano Observatory.
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Station Notes
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The data for the two sensors will vary somewhat. This is normal due to the instruments and channel conditions. |
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