Lakes / Oregon / Grant County / Sproul Reservoir
Sproul Reservoir, Oregon
35 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - Oregon
44.22 degrees N, 119.17 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 Sproul Reservoir Stacks Up
- Larger than 17% of the 642 lakes counted in Oregon.
- About 107 miles from Bend, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Pronghorn Reservoir | Grant | 17 mi | 70 acres |
| Canyon Meadows Lake | Grant | 20 mi | 32 acres |
| Buffalo Lake | Grant | 20 mi | 43 acres |
| Yellowjacket Lake | Harney | 24 mi | 33 acres |
| Strawberry Lake | Grant | 25 mi | 34 acres |
| Magone Lake | Grant | 26 mi | 41 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Sproul Reservoir
How Big Is Sproul Reservoir?
Sproul Reservoir covers 35 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 148032466). Verified October 30, 2026.