Aconcagua is the highest mountain outside of Asia, at 6,961 metres (22,838 ft), and by extension the highest point in both the Western Hemisphere and the Southern Hemisphere. 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.
Aconcagua is arguably the highest non-technical mountain in the world, since the northern route does not absolutely demand ropes, axes, and pins. Although the effects of altitude are severe (atmospheric pressure is 40% of sea-level at the summit), the use of supplemental oxygen is not common.
The mountain has a number of glaciers, the largest being the Ventisquero Horcones Inferior which descends from the south face near the Confluencia camp. Two other large glacier systems are the Ventisquero de las Vacas Sur and Glaciar Este/Ventisquero Relinchos system. The most well-known is the north-eastern or Polish Glacier, as it is a common route of ascent.
This Lux Adventure documents the harsh journey to the Aconcagua summit. Not every member of the trip made the summit but it was a huge success over all.