USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Mason County, Washington

Hydrologic Unit Code 17110018

Latitude 47°24'20", Longitude 123°08'50" NAD27

Drainage area 3.45 square miles

Gage datum 20 feet above NGVD29

**Period of record**
Begin Date	End Date	Count
1951-10-09	2017-08-30	5

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U.S. Department of the Interior | U.S. Geological Survey
Title: Surface Water for USA: Streamflow Measurements
URL: https://waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Washington Water Data Support Team
Page Last Modified: 2025-09-07 12:46:52 EDT
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