| View KML View WKT | United States Rivers |
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Willow Creek
| States | South Dakota |
| Length | 34.6 miles |
| Watershed Length* | 35 miles |
| Mouth | Grand River ⤏ Gulf of Mexico |
| GNIS | 1259018 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey