Madison River
| Madison River | |
|---|---|
The Madison River In Bear Trap Canyon Below Ennis, Montana | |
Madison River watershed (Interactive map) | |
| Location | |
| Country | United States |
| State | Wyoming and Montana |
| Physical characteristics | |
| Source | Madison Junction |
| • location | Yellowstone National Park, Wyoming |
| • coordinates | 44°38′32″N 110°51′56″W / 44.64222°N 110.86556°W |
| Mouth | Missouri River |
• location | Three Forks, Montana |
• coordinates | 45°55′39″N 111°30′29″W / 45.92750°N 111.50806°W |
| Length | 183 mi (295 km) |
| Discharge | |
| • location | near Three Forks |
| • average | 1,647 cu ft/s (46.6 m3/s) |
| Basin features | |
| Tributaries | |
| • left | Firehole River |
| • right | Gibbon River |
The Madison River is a headwater tributary of the Missouri River, approximately 183 miles (295 km) long, in Wyoming and Montana. Its confluence with the Jefferson and Gallatin rivers near Three Forks, Montana forms the Missouri River.