The Andes Mountains extend from Venezuela to Tierra del Fuego, through 7500 kilometers. Characterized by its high altitude, its grandeur and width in Bolivia, by force that rises over the Pacific to the west and the central plains to the east. One can distinguish several sectors with different characteristics. To the north, in Colombia, the Andes are opened in fans, with divergent branches separated by large pits, the core of this sector is crowned by volcanoes, the highest of which is the Tolima (5215 m).
In Ecuador, the eastern and central branches of the array are joined in a single, barely separated by deep basins, partially filled by the products of volcanoes that reach the mountain, the Chimborazo (6267 m), Cotopaxi (5897 m) and Sangay (5325 m).
In Peru, especially in Bolivia and Northwest Argentina until the building gets wider andino. The heart of the highland massif coincides with the average height of 4000 meters.
The Bolivian Altiplano is occupied by the basin where the lake Titicaca and poop. In Chile and Argentina, the Andes is reduced in its western part. Is formed by almost parallel elements crowned by numerous volcanoes, modeled by an intense glaciation, separated by longitudinal trenches, the highest of which is the Aconcagua. Aconcagua measured height of 6959 meters above sea level.