USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

05451787 Union Grove Lake Outlet near Garwin, IA

Tama County, Iowa

Hydrologic Unit Code 07080208

Latitude 42°07'30.3", Longitude 92°43'03.7" NAD83

Drainage area 11.0 square miles

Gage datum 936 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: Iowa Water Data Support Team
Page Last Modified: 2025-11-26 20:31:27 EST
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