6. The Uyuni salt lake of Tunupa , covers
12.000 km², making it the biggest salt lake in the
world. It is located 3.650 metros up in the
mountains of Bolivia, and is considered as one
of the seven natural marvels of the world.
7. After rain when covered with water the salt lake is
converted into the largest mirror in the world.
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15. It is comprised of approximately 11 layers of
salt of depths varying from 2 to 10 meters .
The superficial crust is about 10 meters
deep while the maximum depth of the salt
lake is 120 meters. The crust is comprised of
mushy salt brine when wet.
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21. The salt lake of Uyuni, is estimated to
contain 10 thousand million tonne s of
salt, of which they extract 25 thousand
tonnes each year.
22. The traditional extraction method is to make mounds from which the water
evaporates before transporting.
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25. These blocks of dry salt are used in construction of hotel buildings on the salt lake.
