The mountain range primarily located in South America is the Andes Mountains. Stretching over 7,000 kilometers along the western edge of the continent, the Andes is the longest continental mountain range in the world. This majestic range runs through several countries, including Argentina, Chile, Peru, and Bolivia. The Andes are famous for their diverse ecosystems, unique wildlife, and rich cultural history, including the ancient Inca civilization. They also offer numerous opportunities for outdoor activities such as hiking, skiing, and mountaineering.