Ambato was destroyed by an eruption of Cotopaxi in 1698, and has been badly damaged two or three times by earthquakes.
At the same time Cotopaxi and Sangay, the two active volcanoes, have actually increased in elevation since the measurement of La Condamine in 1742.
Sincholagua and Ruminagui are the next two peaks, going southward, and then the unrivalled cone of Cotopaxi - the highest active volcano in the world - from whose summit smoke curls upward unceasingly.
Tunguragua, or Tungurahua, has a cone-shaped summit like that of Cotopaxi, with a slope of 38°.
Iliniza, which stands west by north of Cotopaxi, has two pyramidal peaks, and is one of the most interesting mountains of the Ecuadorean group. It stands at the western end of the Tiupullo ridge, and overlooks the Quito basin to the north-east.