USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Mendocino County, California

Hydrologic Unit Code 18010103

Latitude 39°37'30", Longitude 123°20'25" NAD27

Drainage area 528 square miles

Gage datum 1,001.28 feet above NGVD29

**Period of record**
Begin Date	End Date	Count
1969-01-14	1994-12-20	121

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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: California Water Data Support Team
Page Last Modified: 2025-09-24 05:14:56 EDT
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