Tropical Andes
The Tropical Andes are located in South America following the path of the Andes. They run, mainly, through five countries, Venezuela, Colombia, Ecuador, Peru, and Bolivia. The land initially was roughly but has decreased to , leaving 25% of the original land. Due to the massive amount of area the landscape is diverse. Diverse landscapes lead to diverse habitats and the ability to provide needed resources for many species. The diverse landscape includes snow-topped mountains down to canyons and valleys. The different vegetation as altitude changes includes tropical rainforests at , cloud forests ranging from , and the highest altitudes of contain grasslands up to snow. The most diverse cloud forests found in Peru and Bolivia covers . Dry forests and woodlands are also found throughout the Tropical Andes. The range is also home to the deepest gorge in Peru at deep and Lake Titicaca, the highest navigable water with an altitude of .
Andes
Though precipitation increases with the height, there are semiarid conditions in the nearly highest mountains of the Andes. This dry steppe climate is considered to be typical of the subtropical position at 32–34° S. The valley bottoms have no woods, just dwarf scrub. The largest glaciers, as e.g. the Plomo glacier and the Horcones glaciers, do not even reach in length and have an only insignificant ice thickness. At glacial times, however, c. 20,000 years ago, the glaciers were over ten times longer. On the east side of this section of the Mendozina Andes, they flowed down to and on the west side to about above sea level. The massifs of Cerro Aconcagua (), Cerro Tupungato () and Nevado Juncal () are tens of kilometres away from each other and were connected by a joint ice stream network. The Andes' dendritic glacier arms, i.e. components of valley glaciers, were up to long, over thick and overspanned a vertical distance of . The climatic glacier snowline (ELA) was lowered from to at glacial times.