Salar De Uyuni: World's Largest Salt Flat
By: EjazUlHaqBhat
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The Salar de Uyuni is the largest salt desert on Earth, stretching roughly 4,000 square miles across the Andean plateau
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It is located in the Daniel Campos Province in Potosi in southwest Bolivia
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The Salar de Uyuni has an average elevation of 12,000 feet above sea level
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The Salar de Uyuni's salt crust covers a layer of extremely salty water or brine
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Water also sits on top of the crust in some places due to a process called "freshwater upwelling"
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The salt flat is surrounded by lofty mountains and volcanoes that supply water to the rim of the crust
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It is almost 100 times larger than the famous Bonneville Salt Flats in Utah, USA
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It is so flat that NASA uses its surface to calibrate sensors on board satellites, according to BBC Earth
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