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

451057101121500 MOREAU RIVER NEAR GREEN GRASS

Dewey County, South Dakota

Hydrologic Unit Code 10130306

Latitude 45°10'57", Longitude 101°12'15" NAD27

Gage datum 1,835.79 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: South Dakota Water Data Support Team
Page Last Modified: 2025-09-12 10:00:05 EDT
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