Water Resources of Illinois
Welcome to the USGS Illinois Water Science Center. These pages are your source for water-resource information collected and interpreted by the U.S. Geological Survey in Illinois.

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Current Streamflow Conditions
On the map to the left, point to one of the stream-monitoring locations to see a summary of current streamflow conditions, or click elsewhere on the map to open a larger view.
USGS StreaMail
USGS StreaMail is system for accessing real-time river stage and streamflow from hand-held wireless devices, such as cell phones and Blackberries. All you have to do is send an email or text message to "streamail@usgs.gov" and use a USGS station number in the "Subject" line. In a few minutes you'll get back an email with the most recent stage and streamflow.
Quick Link to Real-Time Data:
View site list: SW | GW | WQ
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