7,000 kilometers (4,500 miles)
The Andes Mountains stretch about 4,500 miles along the western coast of South America. Credit: CIA World Factbook. View full size image. Located along the entire western coast of South America, the Andes mountain range is about 4,500 miles (7,242 kilometers) long. The Andes Mountains are the longest mountain chain in the world. They stretch along the entire west coast of South America from Cape Horn to Panama, a distance of 4,500 miles. Only the Himalaya Mountains and their adjacent ranges such as the Hindu Kush are higher than the Andes range. Many Andean peaks rise over 20,000 feet (6,096 m.). It is about 500 miles across the widest part of the range. In Spanish, they are called Cordillera de los Andes, which means Andes Mountain Range. Farther north, the peaks are higher. Aconcagua (22,841 feet; 6,962 m.), the highest peak in the Americas, and one of the Seven Summits stands in Argentina, but is only about 65 miles from Santiago, Chile. The Central Andes form the broadest part of the mountain system. 10 MOUNTAINS AND VOLCANOES. The Andean region makes up 30 percent of Argentina. Stretching more than 7,000 kilometers (4,500 miles), the Andes Mountains form the western border of Argentina, which is nearly parallel to the coast of the Pacific Ocean. The Uruguay River (1,600 kilometers/1,000 miles) forms part of the borders between Argentina, Brazil, and Uruguay. It is navigable for about 300 kilometers (190 miles), from its mouth to Concordia. The Andes is the longest mountain range in the world, running 4,500 miles from north to south along the west coast of South America.
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