↑ Secor, R.J. (1994). Aconcagua: A Climbing Guide. The Mountaineers. p. 13. ISBN978-0-89886-406-9. There is no definitive proof that the ancient Incas actually climbed to the summit of the White Sentinel [Aconcagua], but there is considerable evidence that they did climb very high on the mountain. Signs of Inca ascents have been found on summits throughout the Andes, thus far the highest atop Llullaillaco, a 6,721-เมตร (22,051-ฟุต) mountain astride the Chilean-Argentine border in the Atacama region. On Aconcagua, the skeleton of a guanaco was found in 1947 along the ridge connecting the North Summit with the South Summit. It seems doubtful that a guanaco would climb that high on the mountain on its own. Furthermore, an Inca mummy has been found at 5,400 m (17,700 ft) on the south west ridge of Aconcagua, near Cerro Piramidal
