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About
Uyuni Salt Flats

FROM WIKIPEDIA - http://en.wikipedia.org/wiki/Salar_de_Uyuni

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Salar de Uyuni (or Salar de Tunupa) is the world's largest salt flat at 10,582 km² (4,085 square miles). It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes, 3,650 meters (11,975 feet) high. The major minerals found in the salar are halite and gypsum.

Formation:
Some 40,000 years ago, the area was part of Lake Minchin, a giant prehistoric lake. When the lake dried, it left behind two modern lakes, Poopó Lake and Uru Uru Lake, and two major salt deserts, Salar de Coipasa and the larger Uyuni. Uyuni is roughly 25 times the size of the Bonneville Salt Flats in the United States.

S

Uyuni
Av Max
Av Min
Wet Days
JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
69 67 68 69 69 67 66 69 69 71 71 70
51 50 50 48 44 41 40 42 44 48 50 51
10 7 4 1 - - - - 1 3 3 5

Economic influence:
Salar de Uyuni is estimated to contain 10 billion tons of salt, of which less than 25,000 tons is extracted annually. All miners working in the Salar belong to Colchani's cooperative. Every November, Salar de Uyuni is also the breeding grounds for three species of South American flamingos: the Chilean, James's and Andean flamingos. It is also a significant tourist destination; highlights include a salt hotel and several so-called islands. As it is so flat it serves as a major transport route across the Bolivian Altiplano.

Also, Salar de Uyuni holds half of the world's reserves of lithium, a metal which is used in high energy density batteries. There is currently no mining plant at the site and the Bolivian government doesn't want to allow exploitation by foreign corporations, but instead it intends to build its own pilot plant.

Satellite calibration:
Due to its large size, smooth surface, high surface reflectivity when covered with shallow water, and minimal elevation deviation, Salar de Uyuni makes an ideal target for the testing and calibration of remote sensing instruments on orbiting satellites used to study the Earth. In addition to providing an excellent target surface the skies above Salar de Uyuni are so clear, and the air so dry, that the surface works up to five times better for satellite calibration than using the surface of the ocean.  In September 2002 a team took detailed GPS elevation measurements of a portion of the salt flats. This GPS data was then compared to the data from several ICESat passes over the area were used to evaluate the accuracy and precision of ICESat's instruments.