Stillwater River (Yellowstone River)
Stillwater River | ||
Stillwater River north of Absarokee |
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Data | ||
Water code | US : 791524 | |
location | Montana (USA) | |
River system | Mississippi River | |
Drain over | Yellowstone → Missouri → Mississippi → Gulf of Mexico | |
Headwaters |
Beartooth Mountains 45 ° 3 ′ 7 ″ N , 109 ° 59 ′ 15 ″ W. |
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Source height | approx. 2670 m | |
muzzle |
Yellowstone River Coordinates: 45 ° 38 ′ 19 " N , 109 ° 17 ′ 7" W 45 ° 38 ′ 19 " N , 109 ° 17 ′ 7" W |
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Mouth height | 1095 m | |
Height difference | approx. 1575 m | |
Bottom slope | approx. 16 ‰ | |
length | 100 km | |
Catchment area | approx. 2840 km² | |
Discharge at the gauge Absarokee A Eo : 2528 km² Location: 17 km above the mouth |
MQ 1936/2017 Mq 1936/2017 |
26.3 m³ / s 10.4 l / (s km²) |
Left tributaries | West Fork Stillwater River | |
Right tributaries | Rosebud Creek | |
Communities | Nye, Absarokee |
The Stillwater River is a 100 km long right tributary of the Yellowstone River in the central south of the US state Montana .
River course
The Stillwater River has its source in the Beartooth Mountains at an altitude of 2,670 m . It initially flows 50 km north. The river runs within the Absaroka-Beartooth Wilderness in the Custer National Forest . The West Fork Stillwater River flows into the river on the left at the settlement of Nye . This gradually turns to the northeast. At Absarokee , Rosebud Creek meets the Stillwater River when coming from the south. This still flows 17 km to its confluence with the Yellowstone River, 2 km west of Columbus . The river flows through Park County and Stillwater County .
Hydrology
The Stillwater River drains an area of about 2840 km². The mean discharge at the gauge north of Absarokee is 26.3 m³ / s. The river has the most water in June with a monthly mean of 96 m³ / s.