Soap Lake
| Soap Lake | |
|---|---|
View from the south shore of Soap Lake | |
| Location | Grant County, Washington, United States |
| Coordinates | 47°24′18″N 119°29′51″W / 47.405°N 119.4975°W |
| Type | meromictic, saline |
| Basin countries | United States |
| Surface area | 2 sq mi (5.2 km2) |
| Max. depth | 70 ft (21 m) |
| Surface elevation | 1,079 ft (329 m) |
Soap Lake is a meromictic soda lake in the town of Soap Lake, Washington formed by the Missoula Floods at the foot of the Grand Coulee. The lake gets its name from the naturally occurring foam that gives its water a soapy appearance, and because the lake's mineral-rich waters have a slick, soapy feel. The lake is approximately 2 square miles (5.2 km2) in area and 70 feet (21 m) deep.