Potosí is a city, the capital of the department of Potosí in Bolivia. It is claimed to be the highest city in the world at a nominal 4,090 m (13,420 feet).[1] It lies beneath the Cerro de Potosí — sometimes referred to as the Cerro Rico ("rich mountain") — a mountain popularly conceived of as being "made of" silver ore, which has always dominated the city. Cerro de Potosí's peak is 4,824 meters (15,827 feet) above sea level.
The Salar De Uyuni, a salt desert, in southwestern Bolivia, was once an inland sea, or giant salt water lake, but the water evaporated into the thin, dry Andean air.