Salar de Uyuni is the world's largest salt flat at square kilometers. It is located in the Potosí and Oruro departments in southwest Bolivia, near the crest of the Andes and is at an elevation of meters above mean sea level.
Photograph by Nicholas Leslein. A storm approaches along the enormous salt flat, Salar de Uyuni, at the foot of the Andes in southwest Bolivia. Spanning square miles, the flats consist of a solid salt crust that covers a lake of brine.