Lakes / Oregon / Wallowa County / Hells Canyon Reservoir
Hells Canyon Reservoir, Oregon
2,301 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
45.11 degrees N, 116.77 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 Hells Canyon Reservoir Stacks Up
- Larger than 93% of the 642 lakes counted in Oregon.
- The largest lake in Wallowa County among those counted.
- About 235 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Oxbow Reservoir | Baker | 14 mi | 1,106 acres |
| Fish Lake | Baker | 16 mi | 71 acres |
| Clear Creek Reservoir | Baker | 19 mi | 30 acres |
| Kinney Lake | Wallowa | 22 mi | 28 acres |
| Aneroid Lake | Wallowa | 22 mi | 43 acres |
| Downey Lake | Wallowa | 23 mi | 76 acres |
Straight-line distance between lake centers.
Facts and Figures
Waterbody ID{5C645705-693F-4587-AFED-E11ABC743E08}
CountyWallowa
Lake TypeLake
Coordinates45.1054, -116.7711
Questions About Hells Canyon Reservoir
How Big Is Hells Canyon Reservoir?
Hells Canyon Reservoir covers 2,301 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 {5C645705-693F-4587-AFED-E11ABC743E08}). Verified October 30, 2026.