The world's largest salt flat sits at a lofty 3653m (11,985ft) and blankets an amazing 12,000 sq km (4633 sq mi). It was part of a prehistoric salt lake, Lago Minchín, which once covered most of southwest Bolivia. When it dried up, it left a couple of seasonal puddles and several salt pans, including the Salar de Uyuni. The savage beauty of this vast salt desert makes it one of South America's most awe-inspiring spectacles.
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