USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Lyon County, Iowa

Hydrologic Unit Code 10170204

Latitude 43°18'59", Longitude 96°01'40" NAD27

Drainage area 199 square miles

Gage datum 1,340 feet above NGVD29

**Period of record**
Begin Date	End Date	Count
1957-10-01	1976-08-25	18

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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: 2025-09-12 23:06:30 EDT
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