Powder River (Oregon)
The Powder River is a tributary of the Snake River, approximately 153 miles (246 km) long, in northeast Oregon in the United States. It drains an area of the Columbia Plateau on the eastern side of the Blue Mountains. It flows almost entirely within Baker County but downstream of the city of North Powder forms part of the border between Baker County and Union County.
| Powder River (Oregon) Port-pel-lah | |
|---|---|
The Powder River at Baker City | |
Location of the mouth of the Powder River in Oregon | |
| Native name | Polalle Illahe (Chinook jargon) |
| Location | |
| Country | United States |
| State | Oregon |
| Region | Baker and Union counties |
| Physical characteristics | |
| Source | Confluence of McCully Fork and Cracker Creek |
| • location | Sumpter, Oregon in the Sumpter Valley Dredge State Heritage Area, Blue Mountains |
| • coordinates | 44°44′30″N 118°12′22″W |
| • elevation | 4,400 ft (1,300 m) |
| Mouth | Brownlee Reservoir on the Snake River |
• location | 10 mi (16 km) east of Richland, Oregon |
• coordinates | 44°44′37″N 117°02′56″W |
• elevation | 2,064 ft (629 m) |
| Length | 153 mi (246 km) |
| Basin size | 1,603 sq mi (4,150 km2) |
| Discharge | |
| • average | 534 cu ft/s (15.1 m3/s) |
| Type | Scenic |
| Designated | October 28, 1988 |
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