Aconcagua
Aconcagua (), with a summit elevation of , is the highest mountain in both the Southern and Western Hemispheres. It is located in the Andes mountain range, in the Mendoza Province, Argentina, and lies northwest of its capital, the city of Mendoza, about from San Juan Province and from the international border with Chile. The mountain itself lies entirely within Argentina, immediately east of Argentina's border with Chile. Its nearest higher neighbor is Tirich Mir in the Hindu Kush, away. It is one of the Seven Summits.
Jachacunocollo
Jachacunocollo (possibly from Aymara "jach'a" big, "khunu" snow, "qullu" mountain), also known as Jacha Cuno Collo, Tres Marias, Don Luis or Jacha Collo is a mountain in the Andes in Bolivia. It is the highest elevation in the Quimsa Cruz Range reaching an elevation of about 5,800 metres (19,029 ft). Jachacunocollo is situated in the La Paz Department, Inquisivi Province, Quime Municipality, north-west of Wayna Khunu Qullu, the second highest mountain in this mountain range.