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Kootenai (Kootenay) River
| States | Canada (321 mi), Idaho (65 mi), Montana (99 mi) |
| Length | 485.0 miles |
| Watershed Length* | 1,072 miles |
| Mouth | Columbia River ⤏ Eastern Pacific Ocean |
| GNIS | 384301 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Boulder Creek | 0 | 18 | 18 |
| Cripple Horse Creek | 0 | 14 | 14 |
| Deep Creek | 0 | 27 | 27 |
| Fisher River | 0 | 34 | 146 |
| Lake Creek | 0 | 24 | 24 |
| Libby Creek | 0 | 31 | 51 |
| Mission Creek | 0 | 12 | 12 |
| Moyie River | 0 | 26 | 38 |
| Myrtle Creek | 0 | 15 | 15 |
| O'Brien Creek | 0 | 18 | 18 |
| Pinkham Creek | 0 | 23 | 23 |
| Pipe Creek | 0 | 26 | 26 |
| Smith Creek | 0 | 21 | 21 |
| Tobacco River | 0 | 18 | 69 |
| Yaak River | 0 | 54 | 85 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey