The Saral de Uyuni located in Bolivia is the worlds largest salt flat. It is located in the southwest of Bolivia and is about 10,582 km². The salt flat used to be part of a large prehistoric lake named Lake Minchin that existed approximately 40,000 years ago.
Annually 25,000 tons of salt is extracted from the region. Lithium reserves can also be found in the region, but so far there are no mining sites. Other important uses for the region include tourism and the breeding of South American flamingos.