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

06896250 East Fork Grand River South of Mount Ayr, IA

Ringgold County, Iowa

Hydrologic Unit Code 10280101

Latitude 40°35'00", Longitude 94°14'00" NAD27

Drainage area 95.90 square miles

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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: Iowa Water Data Support Team
Page Last Modified: 2025-11-16 03:01:53 EST
1.02 0.87 vaww01