USGS Surface Water for USA: Streamflow Measurements

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Explore the NEW USGS National Water Dashboard interactive map to access real-time water data from over 13,500 stations nationwide.

Streamflow Measurements for the Nation

14172000 CALAPOOIA R AT HOLLEY OREG

Linn County, Oregon

Hydrologic Unit Code 17090003

Latitude 44°21'05", Longitude 122°47'10" NAD27

Drainage area 105 square miles

Gage datum 527.58 feet above NGVD29

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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: Oregon Water Data Support Team
Page Last Modified: 2025-09-03 12:14:46 EDT
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