Lakes / South Dakota / Harding County / Leger Dam
Leger Dam, South Dakota
66.97 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.31 degrees N, 103.75 degrees W - Harding 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 Leger Dam Stacks Up
- Larger than 25% of the 533 lakes counted in South Dakota.
- About 89 miles from Rapid City, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Lake Gardner | Harding | 22 mi | 191.01 acres |
| Guidinger Reservoir | Butte | 33 mi | 84.29 acres |
| Newell Lake | Butte | 37 mi | 153.39 acres |
| Belle Fourche Reservoir | Butte | 40 mi | 6,106.2 acres |
| Beermug Lake | Harding | 44 mi | 34.35 acres |
| White Hill Dam | Perkins | 46 mi | 41.51 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Leger Dam
How Big Is Leger Dam?
Leger Dam covers 66.97 acres in Harding County, South Dakota.
What Is the Largest Lake in Harding County?
Lake Gardner is the largest lake in Harding County, at 191.01 acres.
Largest Lakes in South Dakota
| # | Lake | County | Surface Area | Max Depth |
|---|---|---|---|---|
| 1 | Lake Oahe | Dewey | 309,912.57 acres | - |
| 2 | Lake Francis Case | Charles Mix | 82,166.92 acres | - |
| 3 | Lake Sharpe | Hughes | 58,419.67 acres | - |
| 4 | Lewis and Clark Lake | Bon Homme | 25,141.99 acres | - |
| 5 | Lake Thompson | Kingsbury | 13,887.93 acres | - |
All 533 South Dakota lakes ranked by surface area
Sources: USGS National Hydrography Dataset (The National Map) lake data (ID 131171684). Verified October 30, 2026.