| Grass Lake | |
|---|---|
| Location | Minnehaha County, South Dakota | 
| Coordinates | 43°35′22″N97°02′21″W / 43.5894972°N 97.0391571°W | 
| Type | lake | 
| Surface elevation | 1,572 feet (479 m) | 
Grass Lake is a natural lake in South Dakota, in the United States. [1]
Grass Lake received its name from the abundance of marsh grass within it. [2]