Andes Mountains, South American mountain system that contains the highest peaks in the Western Hemisphere. One of Earth’s great natural features, the Andes form an unbroken rampart over some 5,500 miles—from the southern tip of South America to the continent’s northernmost coast on the Caribbean.

Learn about the Andes Mountains, the world's longest and highest mountain range outside Asia, that stretches across seven South American countries. Discover its formation, climate, flora and fauna, and cultural and historical significance.

South America - Andes, Peaks, Glaciers: The ranges of the Andes Mountains, about 5,500 miles (8,900 km) long and second only to the Himalayas in average elevation, constitute a formidable and continuous barrier, with many summits exceeding 20,000 feet (6,100 metres).

Learn about the geology, topography, climate, wildlife and regions of the Andes, which span through seven countries along the western coast of South America. Discover the highest peak, Mount Aconcagua, and the best hiking trails in the Andes.

The Andes are the longest chain of mountains in the world and include many of the highest peaks in the Western Hemisphere. Although the Andes is a long mountain chain, they are also narrow. Along their length, the east-to-west breadth of the Andes varies between about 120 and 430 miles wide.

The Andes mountains span over 4,300 miles along South America's western edge, traversing seven countries from Venezuela to Chile. Famous for its towering peaks like Aconcagua and ancient ruins such as Machu Picchu, the Andes are a captivating mix of natural wonders and historical treasures.

Andes Mountains, South American mountain system that contains the highest peaks in the Western Hemisphere. One of Earth’s great natural features, the Andes form an unbroken rampart over some 5,500 miles—from the southern tip of South America to the continent’s northernmost coast on the Caribbean.

The Andes (/ ˈ æ n d iː z / AN-deez), Andes Mountains or Andean Mountain Range (Spanish: Cordillera de los Andes; Quechua: Anti) are the longest continental mountain range in the world, forming a continuous highland along the western edge of South America.

Learn 15 fascinating facts about the Andes, the world's longest and highest mountain range outside Asia. Discover how they were formed, where they run, what they produce, and what they offer to travelers and explorers.