The name of the mountain range in South America is the Andes. Stretching over 4,300 miles along the western edge of the continent, the Andes is the longest mountain range in the world. It passes through seven countries: Venezuela, Colombia, Ecuador, Peru, Bolivia, Chile, and Argentina. Renowned for its diverse ecosystems, the Andes features high-altitude deserts, tropical rainforests, and a range of climates and biomes. The range is also rich in cultural history, being home to numerous indigenous peoples and significant archaeological sites. The Andes play a vital role in regional weather patterns and hydrology.