| View KML View WKT | United States Rivers |
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Ouachita River
| States | Arkansas (369 mi), Louisiana (179 mi) |
| Length | 548.2 miles |
| Watershed Length* | 6,268 miles |
| Mouth | Black River ⤏ Gulf of Mexico |
| GNIS | 558280 |
Tributaries
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— Watercourse ‐ ‐ ‐ Watershed* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey