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Natural salt pans or salt flats are flat expanses of ground covered with salt and other minerals, usually shining white under the sun. They are found in deserts and are natural formations (unlike salt evaporation ponds, which are artificial).

These pans usually occur in dry hot climates where the rate of water evaporation is far greater than the rate of precipitation.

Salt pans play an important role in climate–surface interactions. Occurring around the world, they are often covered by a salt crust expressing polygonal ridge patterns with diameters of roughly 1 to 3 m and ridge heights up to 0.4 m.

Nationally, some 60,000 acres have been demarcated as salt pan lands, spread across Maharashtra, Andhra Pradesh, Tamil Nadu, Odisha, Gujarat, and Karnataka. Andhra Pradesh (20,716 acres) boasts the largest expanse of such land, followed by Tamil Nadu (17,095 acres) and Maharashtra (12,662 acres).

The Makgadikgadi Pans in Botswana are one of the largest salt pans in the world.

 

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