Rock Creek (Clark Fork)

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Rock Creek
Rock creek, downriver, facing NE - panoramio.jpg
Data
Water code US :  789673
location Montana (USA)
River system Columbia River
Drain over Clark Fork  → Pend Oreille River  → Columbia River  → Pacific Ocean
Confluence of West Fork and Middle Fork Rock Creek
46 ° 13 ′ 26 ″  N , 113 ° 31 ′ 21 ″  W.
Source height 1742  m
muzzle Clark Fork Coordinates: 46 ° 43 ′ 31 "  N , 113 ° 40 ′ 56"  W 46 ° 43 ′ 31 "  N , 113 ° 40 ′ 56"  W.
Mouth height 1073  m
Height difference 669 m
Bottom slope 8.4 ‰
length 80 km
Catchment area 2302 km²
Discharge
A Eo : 2302 km²
Location: 400 m above the mouth 		MQ 1972/2017
Mq 1972/2017
 		14.8 m³ / s
6.4 l / (s km²)
Right tributaries Upper Willow Creek
Location of Rock Creek in the Pend Oreille River basin

Location of Rock Creek in the Pend Oreille River basin

Middle Fork Rock Creek
Water code US :  787304
location Montana ( USA )
origin Little Johnson Lake, Anaconda Range
45 ° 57 ′ 17 ″  N , 113 ° 32 ′ 48 ″  W.
Source height 2449  m

length 35 km
Right tributaries East Fork Rock Creek

The Rock Creek is a 80 km long left tributary of the Clark Fork in the US state of Montana .

River course

The Rock Creek arises at the confluence of the West Fork and Middle Fork Rock Creek. The Ross Fork Rock Creek flows into the West Fork about 100 m above the junction . The Rock Creek flows in a predominantly northerly direction through the mountains. He crosses the Lolo National Forest . The course of the river is in Granite and Missoula Counties . The Montana Highway 102 follows the river along its entire route. The Rock Creek finally flows into the Clark Fork almost 30 km southeast of Missoula . The Rock Creek Airport is located 1.5 km east of the mouth on the opposite bank of the Clark Fork.

The Middle Fork Rock Creek is the main source river of Rock Creek. It has its origin in the mountain lake Little Johnson Lake at an altitude of 2,449  m . This is located below the Bitterroot Pass ( 2564  m ) on the northern flank of the Anaconda Range . Middle Fork Rock Creek flows north through the mountains and after 35 km it reaches West Fork Rock Creek, with which it joins to Rock Creek. About 3 km before that, the East Fork Rock Creek meets the Middle Fork Rock Creek when coming from the east. The upper reaches of Middle Fork Rock Creek lies in the Beaverhead-Deerlodge National Forest .

Hydrology

The Rock Creek drains an area of ​​2302 km². The mean discharge is 14.8 m³ / s. In May and June the river carries the largest amounts of water with a monthly mean of 43 and 48 m³ / s respectively.

fauna

The river is a popular destination for anglers, especially fly fishing . In Rock Creek u. a. the following fish species: rainbow trout , cutthroat trout , trout , bull trout and coregonus (whitefish).

Web links

Commons : Rock Creek  - collection of pictures, videos and audio files

Individual evidence

  1. ↑ Middle Fork Rock Creek in the Geographic Names Information System of the United States Geological Survey
  2. ^ Rock Creek in the United States Geological Survey's Geographic Names Information System
  3. ↑ a b c USGS 12352500 Bitterroot River near Missoula MT
  4. ↑ Little Johnson Lake in the United States Geological Survey's Geographic Names Information System
  5. ↑ a b Montana Rivers: Rock Creek . www.anglerguide.com. Retrieved August 26, 2018.