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.
Nevado de Chañi
The Nevado de Chañi is a compact mountain group located between the meridians of longitude West 65º42’ and 65º48’ and the parallels of latitude South 24º00’ and 24º10’. The main summit (according to the last available surveys) is 5,949m (24º03’S and 65º44’W) and it is the highest point in the province of Jujuy. There is some confusion about the height of the mountain. Official, but old, official surveys from the Argentine IGM (the military geographic institute) give a height of 6,200 which is an exaggeration. Some more recent surveys give about 5,900. The height of 5,949 has been measured many times with modern global positioning systems by summiteers since the early 2000s.