| Lake Onalaska | |
|---|---|
 Lake Onalaska spillway between Onalaska and French Island | |
  Lake Onalaska  Lake Onalaska | |
| Location | La Crosse County, Wisconsin, United States |
| Coordinates | 43°52′01″N 091°18′26″W / 43.86694°N 91.30722°W |
| Type | reservoir |
| Primary inflows | Mississippi River |
| Primary outflows | Mississippi River |
| Basin countries | United States |
| Max. length | 4 mi (6.4 km) |
| Max. width | 3.75 mi (6.04 km) |
| Surface area | 7,688 acres (3,111 ha) |
| Max. depth | 43 ft (13 m) |
| Surface elevation | 633 ft (193 m) |
| Settlements | Onalaska |
Lake Onalaska is a reservoir located on the Black River and Mississippi River between Wisconsin, and Minnesota.[1] It is approximately 4 miles (6.4 km) across, and is the widest point on the Mississippi River.[2] Located in La Crosse County in the state of Wisconsin, its latitude and longitude are 43°52′01″N 091°18′26″W / 43.86694°N 91.30722°W. The lake is 7,688 acres (31.11 km2) and is shored by the city from which its name came from: Onalaska, Wisconsin. It sits at an altitude of 633 feet (193 m) and is 43 feet (13 m) deep at its deepest.[3][4]
- ^ Wisconsin Department of Natural Resources. "Lake Survey Map: Onalaska Lake, La Crosse County" (PDF). Retrieved December 15, 2017.
- ^ "Home". mississippiriveradventures.com.
- ^ http://wisconsinlakes.com/la%20crosse_county_lakes.html[permanent dead link]
- ^ "La Crosse Archives". 28 February 2020.