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

05587500 Mississippi River at Alton, IL

Madison County, Illinois

Hydrologic Unit Code 07110009

Latitude 38°53'06", Longitude 90°10'51" NAD27

Drainage area 171,500 square miles

Gage datum 403 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://nwis.waterdata.usgs.gov/nwis/measurements?

Page Contact Information: Missouri Water Data Support Team
Page Last Modified: 2024-11-22 15:42:51 EST
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