Lakes / Oregon / Wallowa County / Lostine Reservoir
Lostine Reservoir, Oregon
64 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.43 degrees N, 117.43 degrees W - Wallowa County. State and county outlines drawn from Census boundary data; the lake marker is placed by its USGS National Hydrography Dataset coordinates, not by eye. Schematic - not a survey map.
How Lostine Reservoir Stacks Up
- Larger than 44% of the 642 lakes counted in Oregon.
- About 213 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Francis Lake | Wallowa | 10 mi | 39 acres |
| Wallowa Lake | Wallowa | 14 mi | 1,592 acres |
| Long Lake | Wallowa | 14 mi | 41 acres |
| Steamboat Lake | Wallowa | 14 mi | 45 acres |
| Ice Lake | Wallowa | 16 mi | 64 acres |
| Minam Lake | Wallowa | 18 mi | 59 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Lostine Reservoir
How Big Is Lostine Reservoir?
Lostine Reservoir covers 64 acres in Wallowa County, Oregon.
What Is the Largest Lake in Wallowa County?
Hells Canyon Reservoir is the largest lake in Wallowa County, at 2,301 acres.
Largest Lakes in Oregon
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Upper Klamath Lake | Klamath | 62,095 acres | - |
| 2 | Lake Umatilla | Morrow | 50,042 acres | - |
| 3 | Lake Abert | Lake | 37,137 acres | - |
| 4 | Summer Lake | Lake | 31,602 acres | - |
| 5 | Harney Lake | Harney | 31,290 acres | - |
All 642 Oregon lakes ranked by surface area
Sources: USGS NHD (The National Map NHD MapServer layer 12) named waterbodies FTYPE 390/436; counties via Census point-in-polygon lake data (ID 142134393). Verified October 30, 2026.