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

452223122360100 CLACKAMAS R. @ 99E BR.

Clackamas County, Oregon

Hydrologic Unit Code 17090011

Latitude 45°22'23", Longitude 122°36'01" NAD27

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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: 2025-09-19 11:33:57 EDT
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