Allipén River is a

river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...

located in the La Araucanía Region of

Chile Chile, officially the Republic of Chile, is a country in western South America. It is the southernmost country in the world and the closest to Antarctica, stretching along a narrow strip of land between the Andes, Andes Mountains and the Paci ...

. It is formed at the junction of the rivers Trufultruful and ''Zahuelhue'', near Melipeuco. The basin of the river comprises approximately 36 percent of the

Conguillío National Park Conguillío National Park is in the Andes, in the provinces of Cautín Province, Cautín and Malleco Province, Malleco, in the Araucanía Region of Chile also known as Araucanía Region, Region IX. Its name derives from the Mapudungun, Mapuch ...

surface area (including a 5-km-wide

buffer zone A buffer zone, also historically known as a march, is a neutral area that lies between two or more bodies of land; usually, between countries. Depending on the type of buffer zone, it may serve to separate regions or conjoin them. Common types o ...

around the park). Allipén's main tributary is ''Curaco River'', which receives the waters of

Colico Lake Colico Lake is located in the La Araucanía Region of Chile. The neighboring Caburgua Lake lies to the east of the lake and the Villarrica Lake to the south. The lake is the second deepest entirely within chilean borders (next to Grey Lake). Coli ...

through the river of the same name.

References

Rivers of Araucanía Region Rivers of Chile {{Chile-river-stub