Villarrica is one of Chile

Chile

Chile ,officially the Republic of Chile , is a country in South America occupying a long, narrow coastal strip between the Andes mountains to the east and the Pacific Ocean to the west. It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the far...

's most active volcano

Volcano

2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...

es, rising above the lake

Lake Villarrica

Lake Villarrica, also known as Mallolafquén , is located about 700 kilometers south of Santiago in Chile’s Lake District in the southeast area of the Province of Cautín...

 and town

Villarrica, Chile

Villarrica is a city and commune in southern Chile located on the western shore of Villarrica Lake in the Province of Cautín, Araucanía Region south of Santiago and close to the Villarrica Volcano ski center to the south east. Residents of Villarrica are known as Villarriquences.Tourism, grain and...

 of the same name. The volcano is also known as Rucapillán, a Mapuche

Mapudungun

The Mapuche language, Mapudungun is a language isolate spoken in south-central Chile and west central Argentina by the Mapuche people. It is also spelled Mapuzugun and sometimes called Mapudungu or Araucanian...

 word meaning "House of the Pillán

Pillan

The Pillan is a powerful and respected male spirit in Mapuche mythology....

". It is the westernmost of three large 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 that trend perpendicular to the Andean

Andes

The Andes is the world's longest continental mountain range. It is a continual range of highlands along the western coast of South America. This range is about long, about to wide , and of an average height of about .Along its length, the Andes is split into several ranges, which are separated...

 chain along the Gastre Fault

Gastre Fault Zone

The Gastre Fault Zone is a NW-SE trending fault responsible for the alignment of Villarrica, Quetrupillán and Lanín volcanoes. The fault is believed to be a continuation of Lanalhue Fault which was active in late Paleozoic Era....

. Villarrica, along with Quetrupillán

Quetrupillán

Quetrupillán Volcano is a stratovolcano located in the Araucanía Region of Chile. It is situated between Villarrica and Lanín volcanoes, within Villarrica National Park. Geologically, Quetrupillán is located in a tectonic basement block between the main traces of Liquiñe-Ofqui Fault and...

 and the Chilean portion of Lanín

Lanín

Lanín is an ice-clad, cone-shaped stratovolcano on the border of Argentina and Chile. It forms part of two national parks: Lanín in Argentina and Villarrica in Chile. It is a symbol of the Argentine province of Neuquén, being part of its flag and its anthem. Although the date of its last eruption...

, are protected within Villarrica National Park

Villarrica National Park

Villarrica National Park is located in the Andes, in the Araucanía and Los Ríos regions of Chile, near Pucón. The centerpiece of the park is a line of three volcanoes stretching transversely to the Andean range: Villarrica, Quetrupillán, and Lanín....

. Ascents of the volcano are popular with several guided ascents reaching the top during summer.

Villarrica, with its lava

Lava

Lava refers both to molten rock expelled by a volcano during an eruption and the resulting rock after solidification and cooling. This molten rock is formed in the interior of some planets, including Earth, and some of their satellites. When first erupted from a volcanic vent, lava is a liquid at...

 of basaltic-andesitic composition, is one of only five volcanoes worldwide known to have an active lava lake

Lava lake

Lava lakes are large volumes of molten lava, usually basaltic, contained in a volcanic vent, crater, or broad depression. The term is used to describe both lava lakes that are wholly or partly molten and those that are solidified...

 within its crater

Volcanic crater

A volcanic crater is a circular depression in the ground caused by volcanic activity. It is typically a basin, circular in form within which occurs a vent from which magma erupts as gases, lava, and ejecta. A crater can be of large dimensions, and sometimes of great depth...

.