Lakes / Oregon / Grant County / Olive Lake
Olive Lake, Oregon
149 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
44.78 degrees N, 118.60 degrees W - Grant 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 Olive Lake Stacks Up
- Larger than 67% of the 642 lakes counted in Oregon.
- The largest lake in Grant County among those counted.
- About 143 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Magone Lake | Grant | 22 mi | 41 acres |
| Unity Reservoir | Baker | 27 mi | 921 acres |
| Phillips Lake | Baker | 28 mi | 2,246 acres |
| Whited Reservoir | Baker | 29 mi | 36 acres |
| La Grande Reservoir | Union | 31 mi | 33 acres |
| Pilcher Creek Reservoir | Union | 32 mi | 218 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Olive Lake
How Big Is Olive Lake?
Olive Lake covers 149 acres in Grant County, Oregon.
What Is the Largest Lake in Grant County?
Olive Lake is the largest lake in Grant County, at 149 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 113010022). Verified October 30, 2026.