Antillanca Group is a volcanic group

Volcanic group

A volcanic group is a collection of related volcanoes or volcanic landforms. Note that the term is also used in a different sense when it denotes a suite of associated rock strata largely of volcanic origin; see group for details.-Notable volcanic groups:-See also:*Complex...

 of scoria cones, maar

Maar

A maar is a broad, low-relief volcanic crater that is caused by a phreatomagmatic eruption, an explosion caused by groundwater coming into contact with hot lava or magma. A maar characteristically fills with water to form a relatively shallow crater lake. The name comes from the local Moselle...

s and small stratovolcano

Stratovolcano

A stratovolcano, also known as a composite volcano, is a tall, conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile and periodic, explosive eruptions...

es. Casablanca stratovolcano

Casablanca (volcano)

Casablanca is a holocene stratovolcano in the Andes of Los Lagos Region, Chile. It is located about 90 km east of the city of Osorno and host on its slopes the Antillanca ski resort.- References :...

 is the tallest volcano of the group, which shelters the Antillanca ski resort on its west flank. Aguas Calientes and Puyehue

Puyehue Hot Springs

The Puyehue Hot Springs are a series of hot springs and bathing spa in southern Chile. The Puyehue Hotel and spa uses waters from 5 different upwellings with water temperatures ranging from 41 to 54 °C. The hot springs are located 75 km east of Osorno, following Route 215-CH, in the foothills...

 Hot spring

Hot spring

A hot spring is a spring that is produced by the emergence of geothermally heated groundwater from the Earth's crust. There are geothermal hot springs in many locations all over the crust of the earth.-Definitions:...

s also form part of this volcanic group. The complex encompasses 380 km² and to the west is bordered by the lakes Puyehue

Puyehue Lake

Puyehue Lake is an Andean piedmont lake located in the border of Los Lagos Region with Los Ríos Region of Chile...

 and Rupanco

Rupanco Lake

Rupanco Lake is located in Los Lagos Region of Chile. The closest city, Osorno, has a primary school named after it as well.-External links:**...

.

A great portion of the Antillanca Group lies within Puyehue National Park

Puyehue National Park

Puyehue National Park is located in the Andes, in Los Ríos and Los Lagos Region of Chile. It covers . The Route 215 passes through the park. It connects with the Argentine Route 231 via Cardenal Antonio Samoré Pass....

. The complex is neighbor of the volcanoes Puyehue, Cordón Caulle, Puntiagudo

Puntiagudo-Cordón Cenizos

Puntiagudo-Cordón Cenizos is a snow-capped volcanic chain located in the Andes, in Los Lagos Region of Chile, near Volcán Osorno. It lies between Rupanco Lake and Todos los Santos Lake...

 and Osorno.