Chachani is an about high and wide complex of lava domes, stratovolcanoes and volcanic cones; the highest summit is high, making Chachani the 84th highest peak in the Andes. The Chachani complex has an arcuate shape encompassing both the main Chachani volcano and the high Nocarane to the north of Chachani, while the high La Horqueta together with El Rodado to its west and Chachani proper to its east forms an east-west trending ridge. La Horqueta has a young appearance and resembles an ash cone with a crater. Additional peaks are the northerly high los Ángeles and the southeasterly high Trigo.