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
Pioneer Mountains (Montana) Park, is available for the public to dig for quartz crystals. Pioneer Mountains (Montana) The Pioneer Mountains cover in Beaverhead County in southwestern Montana, USA. The highest peaks in this range include: The Pioneer Mountains are divided into two subranges by the paved Wise River Road: the East Pioneers and West Pioneers. The highest mountains in the entire range are in the East Pioneers - Tweedy Mountain and nearby Torrey Mountain, these two peaks are the highest on the Beaverhead National Forest. The two subranges are quite different from each other in appearance. The East Pioneers have rugged, heavily glaciated