Tilocalar are two volcanoes in the Central Volcanic Zone of the Andes. They are constructed on Pleistocene ignimbrites and are afar. Tilocálar Sur () is a high polygenetic volcano and has an explosion crater one kilometre to the south. Two other craters are also present along a graben. Four basaltic andesite-andesite lava flows emanate from it. Tilocálar Norte () is a high monogenetic system and generated northbound lava flows that run along the eastern wall of the . Based on the age of the underlying Tucucaro ignimbrite (3.2 mya) the volcano is less than 3.2 million years old. An andesitic dyke swarm is associated with this system.