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
Clearwater Mountains Clearwater Mountains The Clearwater Mountains are part of the Rocky Mountains, located in the panhandle of Idaho in the Western United States. The mountains lie between the Salmon River and the Bitterroot Range and encompass an area of . The North Clearwater Mountains is the northernmost and shortest subrange. The subrange is in area. Only two of its peaks — the Pot Mountain and the Black Mountain — rise above . The Selway Crags lie between the North and South Clearwaters both in latitude and mean elevation. The Selway Crags encompass and its two highest peaks are the Grave Peak