Willow Creek (Columbia River tributary)
| Willow Creek | |
|---|---|
Willow Creek Lake, an impoundment of Willow Creek, with the city of Heppner below it | |
| Location | |
| Country | United States |
| State | Oregon |
| Counties | Morrow and Gilliam |
| Physical characteristics | |
| Source | Arbuckle Mountain |
| • location | Blue Mountains, Morrow County, Oregon |
| • coordinates | 45°09′56″N 119°20′29″W / 45.16556°N 119.34139°W |
| • elevation | 4,351 ft (1,326 m) |
| Mouth | Columbia River |
• location | upstream of Arlington, Gilliam County, Oregon |
• coordinates | 45°48′21″N 120°00′24″W / 45.80583°N 120.00667°W |
• elevation | 269 ft (82 m) |
| Length | 79 mi (127 km) |
| Basin size | 880 sq mi (2,300 km2) |
| Discharge | |
| • location | river mile 4 (river kilometer 6) |
| • average | 31.3 cu ft/s (0.89 m3/s) |
| • minimum | 0 cu ft/s (0 m3/s)(Often) |
| • maximum | 16,900 cu ft/s (480 m3/s)(January 14, 1974) |
Willow Creek is a 79-mile (127 km) long tributary of the Columbia River, located in the U.S. state of Oregon. It drains 880 square miles (2,279 km2) of Morrow and Gilliam counties. Arising in the Blue Mountains, it flows generally northwest to its confluence with the Columbia River upstream of Arlington.