Cerro Aconcagua is the highest mountain in the Americas. It is located in the Andes mountain range, in the Argentine province of Mendoza. Aconcagua is the highest peak in both the Western and Southern Hemispheres, as well as the highest outside of Asia. It is one of the Seven Summits.

Aconcagua is bounded by the Valle de 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 most substantial are the north-eastern or Polish Glacier and the eastern or English Glacier.

In mountaineering terms Aconcagua is technically an easy mountain if approached from the north, via the normal route. Although the effects of altitude are severe (atmospheric pressure is 40% of sea-level at the summit), the use of supplemental oxygen is not required. The first attempt on Aconcagua is unknown, though the first ascent by a European was made in 1883 by German explorer Paul Gussfeldt on the route now used as the ‘normal route’