Aconcagua (Spanish pronunciation: [akoŋˈkaɣwa]) is the highest mountain outside of Asia, at 6,960.8 metres (22,837 ft). It is located in the Andes mountain range, in the province of Mendoza, Argentina, and lies 112 kilometres (70 mi) northwest of its capital, the city of Mendoza. The summit is also located about 5 kilometres from San Juan Province and 15 kilometres from the international border with Chile; its nearest higher neighbor is Tirich Mir in the Hindu Kush, 16,520 kilometres (10,270 mi) away. It is one of the Seven Summits.Aconcagua is bounded by the Valle de las Vacas to the north and east and the Valle de los Horcones Inferior to the West and South. The mountain and its surroundings are part of the Aconcagua Provincial Park. The mountain has a number of glaciers. The largest glacier is the Ventisquero Horcones Inferior at about 10 km long, which descends from the south face to about 3600 m altitude near the Confluencia camp. Two other large glacier systems are the Ventisquero de las Vacas Sur and Glaciar Este/Ventisquero Relinchos system at about 5 km long. The most well-known is the north-eastern or Polish Glacier, as it is a common route of ascent.The mountain was created by the subduction of the Nazca Plate beneath the South American plate during the geologically recent Andean orogeny; but it is not a volcano. The origin of the name is contested; it is either from the Arauca Aconca-Hue, which refers to the Aconcagua River and means "comes from the other side",[citation needed] the Quechua Ackon Cahuak, meaning "'Sentinel of Stone",[citation needed] or Quechua Anco Cahuac, "White Sentinel" or the Aymara Janq'u Q'awa, "White Ravine", "White Brook".