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

06040050 Madison River at Ennis, MT

Madison County, Montana

Hydrologic Unit Code 100200071205

Latitude 45°20'51.23", Longitude 111°43'20.87" NAD83

Drainage area 1,722.0 square miles

Gage datum 4,931.0 feet above NAVD88

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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: 2025-09-05 13:19:30 EDT
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