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

12346000 Bitterroot River near Grantsdale MT

Ravalli County, Montana

Hydrologic Unit Code 17010205

Latitude 46°11'30", Longitude 114°10'10" NAD27

Drainage area 1,414 square miles

Gage datum 3,570 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: Montana Water Data Support Team
Page Last Modified: 2025-11-19 22:01:06 EST
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