- Rock River Info
- The Trail Initiative
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This site gives the best information about water levels/gauges for the entire Rock River and some of its tributaries.
This site is very good information about water levels/gauges for the Rock River just in Illinois:
This site is good information about water levels/gaugesfor the central Rock River and as an overall site for the river:
Rock River reporting stations for Wisconsin and Illinois can be selected from the US Geological Survey site, USGS Current Water Data for the Nation