| View KML View WKT | United States Rivers |
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Fortymile River
| States | Alaska (40 mi), Canada (23 mi) |
| Length | 62.6 miles |
| Watershed Length* | 782 miles |
| Mouth | Yukon River ⤏ Northeastern Pacific Ocean |
| GNIS | 1402291 |
Tributaries
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| Name | Distance from Mouth (miles) | Length (miles) | Watershed Length (miles) |
|---|---|---|---|
| Fortymile River - North Fork | 63 | 58 | 215 |
| Fortymile River - South Fork | 63 | 28 | 505 |
* Note: Watershed is mostly rivers/streams 15+ miles in length.
Data from United States Geological Survey