Malheur River
| Malheur River | ||
 Malheur River in Harney County |
||
| Data | ||
| Water code | US : 1145769 | |
| location | Oregon (USA) | |
| River system | Columbia River | |
| Drain over | Snake River → Columbia River → Pacific Ocean | |
| source |
Blue Mountains 44 ° 8 ′ 5 " N , 118 ° 37 ′ 14" W. |
|
| muzzle | in the Snake River coordinates: 44 ° 3 ′ 33 " N , 116 ° 58 ′ 31" W 44 ° 3 ′ 33 " N , 116 ° 58 ′ 31" W. |
|
| Mouth height |
650 m
|
|
| length | 306 km | |
| Catchment area | 12,173 km² | |
| Drain at Vale Gauge, Oregon |
MNQ MQ MHQ |
0 l / s 6 m³ / s 589 m³ / s |
| Left tributaries |
North Fork Malheur River , Bully Creek, Willow Creek |
|
| Right tributaries | South Fork Malheur River | |
| Reservoirs flowed through | Warm Springs Reservoir | |
| National Wild and Scenic River | ||
| North Fork Malheur River | ||
| Water code | US : 1146976 | |
| location | Oregon (USA) | |
| River system | Columbia River | |
| Drain over | Malheur River → Snake River → Columbia River → Pacific Ocean | |
| source | Big Cow Burn in Baker County 44 ° 21 ′ 58 ″ N , 118 ° 24 ′ 16 ″ W. |
|
| Source height | 2098 m | |
| muzzle | at Juntura in the Malheur River 43 ° 45 ′ 25 ″ N , 118 ° 3 ′ 40 ″ W |
|
| Mouth height | 891 m | |
| Height difference | 1207 m | |
| Bottom slope | 13 ‰ | |
| length | 95 km | |
| Catchment area | 1424 km² | |
| Drain |
MNQ MQ MHQ |
0 l / s 2 m³ / s 198 m³ / s |
| Reservoirs flowed through | Beulah Reservoir | |
| National Wild and Scenic River | ||
| South Fork Malheur River | ||
| Water code | US : 1127302 | |
| location | Oregon (USA) | |
| River system | Columbia River | |
| Drain over | Malheur River → Snake River → Columbia River → Pacific Ocean | |
| source | 20 km east of Malheur Lake 43 ° 13 ′ 40 ″ N , 118 ° 24 ′ 24 ″ W |
|
| muzzle | at Riverside in the Malheur River 43 ° 33 ′ 23 ″ N , 118 ° 10 ′ 0 ″ W |
|
| Mouth height |
995 m
|
|
| length | approx. 50 km | |
The Malheur River (local pronunciation: MAL-hyure ) is a 306 km long tributary of the Snake River in the eastern US state of Oregon . It drains part of the Great Basin , a high desert landscape between the Harney Basin , the Blue Mountains and the Snake River.
The nearby Malheur Lake is not in the catchment area of the Malheur River, but southwest of it in the Harney Basin.
River course
The Malheur River has its origin in the southern Blue Mountains in southern Grant County and south of Strawberry Mountain . It flows south through Malheur National Forest , then south-east past Drewsey and through Warm Springs Reservoir .
At Riverside in eastern Malheur County , the South Fork Malheur River meets the river when coming from the south. After that, the Malheur River abruptly turns north. At Juntura the North Fork Malheur River flows into the river from the north. From Juntura the Malheur River flows mainly in an easterly direction past Vale and finally reaches the Snake River 3 km north of Ontario .
River diversions
The water in the lower reaches of the Malheur River is used to irrigate the potato-growing areas in the Snake River Plain .
There are approximately 600 km of irrigation canals and ditches in the lower basin of the Malheur River and its tributary Willow Creek.
The water level of the Malheur River and its tributaries is strongly influenced by a complex system of drains and canals for irrigation, which begins at about river mile 65, at Namorf and Harper (Oregon) . It extends to the mouth of the river in Ontario and covers an area of 132,000 acres (approximately 53,000 hectares ). The system is part of the Bureau of Reclamation- led Vale Project, which includes a series of dams, the largest of which is Warm Springs Reservoir on the main arm of the Malheur River, Beulah Reservoir on North Fork Malheur River, Bully Creek Reservoir on Bully Creek and the Malheur Reservoir on Willow Creek are.
Agricultural sewage led to increased phosphate levels in the lower part of the Malheur River.
history
The river's name is derived from the French word Malheur for bad luck or misfortune from. Owes its name to the river French-Canadian trappers , which for the North West Company worked and the Snake County Expeditions of Donald Mackenzie took part from 1818, and complained about the unfortunate fact that their beaver pelts were stolen by Indians.
Natural history
The catchment area of the Malheur River was once an important spawning area for migratory fish such as salmon . At the beginning of the 20th century, however, with the construction of numerous dams on the Snake River, this fish migration was blocked and the fish population disappeared.
Protected areas
Part of the Malheur River, 22 kilometers in length, has been protected as a National Wild and Scenic River (in the categories wild and scenic ) since 1988 . At North Fork Malheur River is 40 km in the category scenic ( scenic ) as a National Wild and Scenic River excellent.
Individual evidence
- ^ Malheur River in the Geographic Names Information System of the United States Geological Survey
- ↑ National Hydrography Dataset high-resolution flowline data . United States Geological Survey. Retrieved May 3, 2011.
- ↑ a b c Watershed Professionals Network, LLC: Malheur River Subbasin Assessment and Management Plan for Fish and Wildlife Mitigation (PDF) Northwest Power and Conservation Council. 2004. Archived from the original on September 23, 2012. Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. Retrieved January 11, 2011.
- ↑ North Fork Malheur River in the Geographic Names Information System of the United States Geological Survey
- ↑ South Fork Malheur River in the Geographic Names Information System of the United States Geological Survey
- ↑ National Wild & Scenic Rivers - Malheur River ( Memento of the original from March 15, 2012 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ↑ National Wild & Scenic Rivers - North Fork of the Malheur River ( Memento of the original from April 27, 2012 in the Internet Archive ) Info: The archive link was automatically inserted and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
