Sun River
| Sun River Medicine River, Pointed Rock River | |
|---|---|
The headwaters of the Sun River in the Rockies, near Gibson Reservoir | |
| Location | |
| Country | United States |
| State | Montana |
| Cities | Fairfield, Sun River, Vaughn, Great Falls |
| Physical characteristics | |
| Source | North Fork Sun River |
| • location | Confluence of Open Creek and McDonald Creek, Lewis and Clark County |
| • coordinates | 47°54′43″N 112°58′23″W / 47.91194°N 112.97306°W |
| • elevation | 5,781 ft (1,762 m) |
| 2nd source | South Fork Sun River |
| • location | Sun Lake, Lewis and Clark County |
| • coordinates | 47°20′07″N 112°53′29″W / 47.33528°N 112.89139°W |
| • elevation | 6,988 ft (2,130 m) |
| Source confluence | |
| • location | Near Gibson Reservoir, Lewis and Clark County |
| • coordinates | 47°37′47″N 112°51′25″W / 47.62972°N 112.85694°W |
| • elevation | 4,728 ft (1,441 m) |
| Mouth | Missouri River |
• location | Great Falls, Cascade County |
• coordinates | 47°29′42″N 111°18′43″W / 47.49500°N 111.31194°W |
• elevation | 3,314 ft (1,010 m) |
| Length | 130 mi (210 km) |
| Basin size | 1,875 sq mi (4,860 km2) |
| Discharge | |
| • location | Vaughn |
| • average | 669 cu ft/s (18.9 m3/s) |
| • minimum | 20 cu ft/s (0.57 m3/s) |
| • maximum | 53,500 cu ft/s (1,510 m3/s) |
| Basin features | |
| River system | Missouri River watershed |
| Tributaries | |
| • left | North Fork Sun River, Muddy Creek |
| • right | South Fork Sun River, Willow Creek |
The Sun River (also called the Medicine River) is a tributary of the Missouri River in the Great Plains, approximately 130 mi (209 km) long, in Montana in the United States.