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
Harquahala Mountains Harquahala Mountains The Harquahala Mountains (Yavapai: ʼHakhe:la) are the highest mountain range in southwestern Arizona, United States and are located southwest of the towns of Aguila and Wenden. The name originated from the Yavapai 'ʼHakhe:la", which means "running water". The range is oriented from northeast to southwest and is approximately 32 km long and 20 km at its widest point. At the northeast are two prominent peaks, Eagle Eye Peak and Eagle Eye Mountain. One has a natural opening or bridge through it appearing as an eye high up, and is the namesake for the peaks and Aguila (Spanish for