USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Ketchikan Gateway Borough, Alaska

Hydrologic Unit Code 19010105

Latitude 55°24'59", Longitude 130°52'03" NAD27

Drainage area 15.5 square miles

Gage datum 290 feet above NGVD29

**Period of record**
Begin Date	End Date	Count
1936-08-08	1959-12-07	90

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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: Alaska Water Data Support Team
Page Last Modified: 2025-09-05 17:07:12 EDT
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