In the foothills above the Chile's Atacama desert is Laguna Miscanti. Foothills is a bit of a misnomer as the floor of the Atacama desert is at 7,900' and the lake surface of Laguna Miscant is ~13,500'. The volcanos in the background are all 16,000+ in height. The lake water is very saline as are most lakes in the Atacama.
Shot with a Sony S99 utilizing a Zeis Planar 24-70mm lens. Settings are F/9 at 125th sec.with a focal length of 70mm