The longest mountain range in the world is the Andes, which stretches over 4,300 miles (about 7,000 kilometers) along the western edge of South America. The Andes traverse seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Known for their diverse ecosystems, the Andes feature high peaks, deep valleys, and a wide variety of climates, ranging from tropical rainforests to arid deserts. The range is home to some of the highest peaks in the world, including Aconcagua, which is the highest mountain outside of Asia. The Andes have significant cultural importance, supporting various indigenous communities and rich biodiversity.