| View KML View WKT | United States Rivers |
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Johnny Run
| States | Illinois |
| Length | 29.8 miles |
| Watershed Length* | 30 miles |
| Mouth | Mazon River ⤏ Gulf of Mexico |
| GNIS | 411138 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey