Vicunas roam on the Salar del Hombre Muerto in Salta Province
Vicunas roam on the Salar del Hombre Muerto, or Dead Man's salt flat, an important source of lithium at around 4,000 meters (13,123 feet) above sea level on the border of the northern Argentine provinces of Catamarca and Salta, October 28, 2012. REUTERS/Enrique Marcarian (ARGENTINA)