Around 160-220 thousand years ago the summit of the Las Cañadas I volcano collapsed, creating the Las Cañadas (Ucanca) caldera. Later, a new stratovolcano, Las Cañadas II, formed in the vicinity of Guajara and then catastrophically collapsed. Another volcano, Las Cañadas III, formed in the Diego Hernandez sector of the caldera. All of the Las Cañadas volcanoes attained a maximum altitude similar to that of Teide (which is sometimes referred to as the Las Cañadas IV volcano).