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
Sobaek Mountains They mark the traditional border between the Honam and Yeongnam regions. Sobaek Mountains The Sobaek Mountains are a mountain range cutting across the southern Korean peninsula. They split off from the Taebaek Mountains and trend southwest across the center of the peninsula. They are traditionally considered to reach their southwestern limit at Jirisan, which is also the highest peak of the range. Other famous mountains in the range include Songni Mountain, Joryeong Mountain, Gaya Mountain, Worak Mountain, and Sobaek Mountain itself. The peaks of the Sobaek Mountains are generally well over 1000 m above sea level. The Sobaek Mountains form