The Callaqui volcanic complex is located in the Andes mountain range of southern Chile. It consists of several volcanic structures, including the prominent Callaqui volcano, which reaches an elevation of about 3,600 meters. The complex is known for its stratovolcano formation, characterized by layers of lava, ash, and volcanic rocks. The Callaqui volcanic complex is part of the Southern Volcanic Zone of the Andes and has experienced multiple eruptions throughout its history. Its last significant eruption occurred in the late 19th century. The area is also notable for its diverse ecosystems and is a popular destination for hiking and outdoor activities.