The third range, on the east, runs northeast into Venezuela. Many peaks in the northern Andes reach 15,000 feet or more. Many of the high mountains of the Andes are volcanoes. Some of them are active. The most famous of these volcanoes are Cotopaxi, Tungurahua, and Sangay in Ecuador.
Earthquakes aye common in the Andes.
Many towns have been wiped out by them. Cities that have been greatly damaged include Valparaiso, Lima, Callao, and Quito. Glaciers cover many of the high peaks of the Andes, even those close to the equator. The largest glaciers are in southern Chile. Others reach down to the Pacific Coast.