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

04200000 East Branch Black River at Elyria OH

Lorain County, Ohio

Hydrologic Unit Code 04110001

Latitude 41°20'51", Longitude 82°05'40" NAD27

Drainage area 217 square miles

Gage datum 710 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: Ohio Water Data Support Team
Page Last Modified: 2025-11-19 01:24:00 EST
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