The Bolivian salt flats are the largest in the world and are also one of South America’s main tourist attractions. This huge terrain of salt that shimmers in the light covers a span of 10,582 kilometres of the Altiplano which can be seen from as far away as space! Strata of salt are compressed and sandwiched between deposits of sedimentary rock that reach as far a 10cm deep in certain parts of the flat. There is approximately 10 billion tons of salt in the flat. While the salt is what attracts tourists from all around the world, the real value of the land lies beneath. Approximately 70% of the world’s supply of lithium can be found beneath the flats. This thin metal is used to power a wide range of technology. An entire industry has been devoted to the extraction of the metal.