While Mount Everest is the highest mountain in the world, it's located in the Northern Hemisphere. The Andes Mountains, which stretch along the western side of South America, contain the highest peaks in the Southern Hemisphere, including:
* Mount Aconcagua (6,961 meters or 22,838 feet), the highest peak in the Americas and the Southern Hemisphere.
* Mount Ojos del Salado (6,893 meters or 22,615 feet), the highest active volcano in the world.
* Mount Pissis (6,795 meters or 22,294 feet), the third highest peak in the Andes.
Therefore, the Andes Mountains are the highest mountain range in the Southern Hemisphere.
