Cordillera the cordilleras in Ecuador, Peru, Bolivia, Chile, and Argentina. Mountain ranges of this type have a complex structure, usually the result of folding and faulting accompanied by volcanic activity. In South America the ranges include numerous volcanic peaks. (Though not itself a volcano, Argentina's Mt. Aconcagua, at 22,834 feet (6,960 metres) high, is the highest point in the Western Hemisphere. The Andes cordillera has Ojos del Salado, the highest active volcano in the world, and second highest point in the Western Hemisphere. A number of the volcanoes have been active in historic times. Aside from the volcanic peaks, the crests
Áncash Region other smaller ones, a real symphony of summits with different grades of difficulty in climbing. This mountain range was called White, not only for its eternal snow but also for the chemical constitution of its quartz and feldspar rocks. It has the highest summit in Peru and the fifth one in America after Aconcagua, Ojos del Salado, Bonete and Mercedario: Huascarán, whose south peak reaches 6768 msnm. Huascarán's north peak reaches 6655 m. Allpamayu whose height has been estimated in 5,947 m, has been considered as "the most beautiful snow mountain of the world". This statement was achieved by the