| Owyhee Reservoir | |
| Location: | Malheur County, Oregon |
| Coords: | 43.4614°N -117.3383°W |
| Type: | reservoir |
| Inflow: | Owyhee River |
| Outflow: | Owyhee River |
| Catchment: | 11160mi2[1] |
| Basin Countries: | United States |
| Date-Flooded: | 1932 |
| Length: | 52miles |
| Area: | 13900acres |
| Depth: | 81feet |
| Max-Depth: | 117feet |
| Volume: | 1122000acre.ft |
| Residence Time: | 1.7 years |
| Shore: | 125miles |
| Elevation: | 2670feet |
| Pushpin Map: | Oregon#USA |
| Pushpin Map Alt: | Location of Owyhee Reservoir in Oregon, USA. |
Owyhee Reservoir or Owyhee Lake is a reservoir on the Owyhee River in Malheur County, Oregon, United States.[2] Located in far Eastern Oregon near the Idaho border, the reservoir is Oregon's longest at 52miles.[3] The 13900acres lake is home to several species of fish, including crappie, rainbow trout, largemouth bass, smallmouth bass, yellow perch, and brown bullhead.[4] An artificial lake, it was created in 1932 with the completion of the Owyhee Dam.[5] The lake supplies water for irrigation for 1,800 farms covering 118,000 acres of land in Eastern Oregon and Southwestern Idaho.[6] Seasonal Lake Owyhee State Park is located on the northeast shore and includes a boat ramp.[7] [8]