Lakes / Washington / La Grande Reservoir
La Grande Reservoir, Washington
45 acres
Surface Area
960 ft
Surface Elevation
Where It Sits, and How Deep It Goes
Locator - Washington
46.81 degrees N, 122.30 degrees W - Pierce County. State and county outlines drawn from Census boundary data; the lake marker is placed by its Washington DFW coordinates, not by eye. Schematic - not a survey map.
Facts and Figures
Waterbody ID{356B43E0-B53D-4A06-93D5-E23AA3B584F9}
CountyPierce
Lake TypeLake
Coordinates46.8141, -122.3046
Largest Lakes in Washington
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Franklin D Roosevelt Lake | Ferry | 71,323 acres | - |
| 2 | Lake Umatilla | Klickitat | 50,042 acres | - |
| 3 | Lake Chelan | Chelan | 32,677 acres | About 1,500 ft |
| 4 | Banks Lake | Grant | 26,879 acres | - |
| 5 | Lake Wallula | Benton | 26,343 acres | - |
Sources: USGS NHD via WA Dept of Ecology lake data (ID {356B43E0-B53D-4A06-93D5-E23AA3B584F9}). Verified October 30, 2026.