Rock Creek (Palouse River)

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Rock Creek
The Rock Creek flows through the Hole in the Ground-Coulee between Bonnie Lake and Rock Lake

The Rock Creek flows through the Hole in the Ground coulee between Bonnie Lake and Rock Lake

Data
Water code US :  1507847
location Washington (USA)
River system Columbia River
Drain over Palouse River  → Snake River  → Columbia River  → Pacific Ocean
origin Lower Pine Lake
47 ° 23 ′ 55 "  N , 117 ° 32 ′ 41"  W.
Source height 676  m
muzzle Palouse River Coordinates: 46 ° 54 ′ 41 "  N , 117 ° 55 ′ 42"  W 46 ° 54 ′ 41 "  N , 117 ° 55 ′ 42"  W
Mouth height 390  m
Height difference 286 m
Bottom slope 3.4 ‰
length 85 km
Catchment area 2471 km²
Left tributaries Pine Creek, Cottonwood Creek
Right tributaries Imbier Creek
Flowing lakes Bonnie Lake , Rock Lake
Reservoirs flowed through Chapman Lake
Communities Ewan, Revere

The Rock Creek is a 85 km long right tributary of the Palouse River in southeast Washington state .

River course

Rock Creek has its origins in Lower Pine Lake , a small reservoir 30 km southeast of the town of Spokane in the Turnball National Wildlife Refuge . It flows through the northern Columbia Plateau in a predominantly southwestern direction. At the upper reaches is the small reservoir Chapman Lake . After 15 km it reaches the northeast end of the 7 km long Bonnie Lake . Below the lake, Rock Creek flows 5.4 km southwest before flowing into the northeast end of 11.6 km long Rock Lake . Above the confluence, Pine Creek meets the river from the left. The river valley between the two lakes is called Hole in the Ground . Like the two lakes, it was formed during the Missoula Floods at the end of the last glacial period about 10,000 years ago. Below Rock Lake, Rock Creek flows 10 km to the southwest, then 10 km to the west and finally the last 25 km to the south. The Rock Creek finally flows into the Palouse River 10 km west of Winona . The Rock Creek catchment area covers 2,471 km². It has little rainfall. Irrigated agriculture takes place in places along the river.

Web links

Individual evidence

  1. ^ Lower Pine Lake in the United States Geological Survey's Geographic Names Information System
  2. ^ Rock Creek in the United States Geological Survey's Geographic Names Information System
  3. ↑ a b USGS 13349900 ROCK CREEK NEAR WINONA, WA