USGS Surface Water for USA: Streamflow Measurements

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Streamflow Measurements for the Nation

Cook County, Illinois

Hydrologic Unit Code 07120003

Latitude 41°31'42.1", Longitude 87°31'46" NAD83

Drainage area 8.84 square miles

Gage datum 606.69 feet above NAVD88

**Period of record**
Begin Date	End Date	Count
1948-05-11	2024-12-16	448

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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: Illinois Water Data Support Team
Page Last Modified: 2024-12-22 19:24:43 EST
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