Meromictic lake
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A meromictic lake is a lake which has layers of water that do not intermix. In ordinary, holomictic lakes, at least once each year, there is a physical mixing of the surface and the deep waters.
McGinnis Lake is a meromictic lake within the Petroglyphs Provincial Park.
Lac Pavin in France is a meromictic crater lake.
Strandvatnet in Nordland down to the left; only a small isthmus separates the lake from Ofotfjord.
Lac du Bourget is the largest and deepest lake in France
Soap Lake
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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.
View from the south shore of Soap Lake
Foam on the shore of Soap Lake
Pacific Apartments, nationally advertised as the social center and health resort of the Columbia Basin (1928)