| View KML View WKT | United States Rivers |
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Poplar River
| States | Montana |
| Length | 110.3 miles |
| Watershed Length* | 524 miles |
| Mouth | Missouri River ⤏ Gulf of Mexico |
| GNIS | 775364 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Boxelder Creek | 4 | 51 | 51 |
| Butte Creek | 104 | 42 | 42 |
| Poplar River - East Fork | 110 | 22 | 22 |
| Poplar River - Middle Fork | 110 | 37 | 75 |
| Poplar River - West Fork | 65 | 94 | 224 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey