Lakes / South Dakota / Roberts County / Indian Slough
Indian Slough, South Dakota
29.16 acres
Surface Area
Where It Sits, and How Deep It Goes
Locator - South Dakota
45.92 degrees N, 97.00 degrees W - Roberts 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 Indian Slough Stacks Up
- Larger than 4% of the 533 lakes counted in South Dakota.
- About 71 miles from Watertown, as the crow flies.
Lakes Nearby
| Lake | County | Distance | Surface Area |
|---|---|---|---|
| Dobberstien Slough | Roberts | 4.7 mi | 73.14 acres |
| Knebel Slough | Roberts | 8.8 mi | 32.87 acres |
| Cottonwood Lake | Roberts | 10 mi | 597.25 acres |
| Lake Bdesaka | Roberts | 16 mi | 149.99 acres |
| Mud Lake | Marshall | 18 mi | 165.07 acres |
| Greys Lake | Marshall | 18 mi | 184.34 acres |
Straight-line distance between lake centers.
Facts and Figures
Questions About Indian Slough
How Big Is Indian Slough?
Indian Slough covers 29.16 acres in Roberts County, South Dakota.
What Is the Largest Lake in Roberts County?
Lake Traverse is the largest lake in Roberts County, at 10,747.48 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 126211610). Verified October 30, 2026.