| Swan River | |
| Country | United States |
|---|---|
| State | Montana |
| Source | Gray Wolf Lake |
| - location | Mission Mountains, Missoula County |
| - elevation | 6,650 ft (2,027 m) |
| - coordinates | |
| Mouth | Flathead Lake |
| - location | Bigfork, Flathead County |
| - elevation | 2,897 ft (883 m) |
| - coordinates | |
| Length | 95 mi (153 km) |
| Basin | 700 sq mi (1,813 km2) |
| Discharge | for near Bigfork |
| - average | 1,145 cu ft/s (32 m3/s) |
| - max | 8,890 cu ft/s (252 m3/s) |
| - min | 193 cu ft/s (5 m3/s) |
The Swan River in the western part of the U.S. state of Montana starts in the Mission Mountains at Gray Wolf Lake and continues north to Swan Lake. Then it goes west and is impounded by a dam before emptying into Bigfork Bay and the town of Bigfork, where it enters Flathead Lake. The last stretch of the river is sometimes called the Bigfork River. It is a moderately sized river, draining the Swan Valley between the Mission Range and Swan Range.