| View KML View WKT | United States Rivers |
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Illinois River
| States | Arkansas (51 mi), Oklahoma (104 mi) |
| Length | 154.4 miles |
| Watershed Length* | 355 miles |
| Mouth | Arkansas River ⤏ Gulf of Mexico |
| GNIS | 1094043 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Ballard Creek | 102 | 22 | 22 |
| Baron Fork | 41 | 48 | 70 |
| Caney Creek | 31 | 24 | 24 |
| Clear Creek | 127 | 20 | 20 |
| Flint Creek | 87 | 25 | 25 |
| Osage Creek | 118 | 29 | 41 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey