East Gallatin River
| East Gallatin River | |
|---|---|
East Gallatin River near Belgrade, Montana | |
Location of mouth | |
| Location | |
| Country | United States |
| State | Montana |
| County | Gallatin |
| Physical characteristics | |
| Source | |
| • coordinates | 45°39′51″N 110°57′10″W / 45.66417°N 110.95278°W |
| Mouth | |
• location | Nixon Gap |
• coordinates | 45°53′30″N 111°20′01″W / 45.89167°N 111.33361°W |
• elevation | 4,157 feet (1,267 m) |
| Length | 42 miles (68 km) |
| Basin size | 148 square miles (380 km2) (Gallatin Range, Bridger Range) |
| Discharge | |
| • location | Belgrade |
| • average | 137 cu/ft. per sec. |
| Basin features | |
| River system | Missouri River |
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The East Gallatin River flows 42 miles (68 km) in a northwesterly direction through the Gallatin valley, Gallatin County, Montana. Rising from the confluence of Rocky Creek and several other small streams, the East Gallatin begins about one mile (1.6 km) east of downtown Bozeman, Montana. The river joins the main stem of the Gallatin River 2.3 miles (3.7 km) north of Manhattan, Montana. Throughout its course, the river traverses mostly valley floor ranch and farmland with typical summer flows of approximately 50 cu ft/s (1.4 m3/s).