| View KML View WKT | United States Rivers |
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Tarkio River
| States | Iowa (47 mi), Missouri (34 mi) |
| Length | 81.1 miles |
| Watershed Length* | 172 miles |
| Mouth | Missouri River ⤏ Gulf of Mexico |
| GNIS | 727465 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| East Tarkio Creek | 44 | 23 | 23 |
| West Tarkio Creek | 21 | 51 | 69 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey