In the highlands of Bolivia is at 3650 meters the Salar de Uyuni or Tunupa which is the largest salt desert in the world ( with 12,000 km ²). The mirror effect of the surface of the salt lake is spectacular.
There are approximately 11 layers of salt crust found on the surface has a thickness of 10 meters. The depth of the salt is 120 meters and is estimated to draw 25 thousand tons annually.
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