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

05013600 St. Mary River near St. Mary MT

Glacier County, Montana

Hydrologic Unit Code 10010002

Latitude 48°43'33.64", Longitude 113°26'08.45" NAD83

Drainage area 130 square miles

Gage datum 4,470 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: 2025-09-21 09:53:00 EDT
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