Mamuil Malal Pass is an international mountain pass

Mountain pass

A mountain pass is a route through a mountain range or over a ridge. If following the lowest possible route, a pass is locally the highest point on that route...

 in the Andes

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...

 between 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...

 and Argentina

Argentina

Argentina , officially the Argentine Republic , is the second largest country in South America by land area, after Brazil. It is constituted as a federation of 23 provinces and an autonomous city, Buenos Aires...

. The pass connects Pucón

Pucón

Pucón is a Chilean city and commune administered by the municipality of Pucón located in the Province of Cautín, Araucanía Region, 100 km to the southeast of Temuco and 780 km to the south of Santiago....

 and Curarrehue

Curarrehue

Curarrehue is a town and commune in Cautín Province of Araucanía Region, Chile. The origin of Curarrehue dates back to the occupation of Araucanía and the Conquest of the Desert by the Chilean and Argentine army respectively in the 1870s and 1880s when Mapuches were pushed by the Argentine Army...

 in Chile with Junín de los Andes

Junín de los Andes

Junín de los Andes is a village in the province of Neuquén, Argentina. It has 10,592 inhabitants as of the , and is the head town of the Huiliches Department...

 in Argentina. The road is paved on the Argentinian side and passes just north of Lanín Volcano

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...

 (3747 metres (12,293 ft)). During winter the pass may close due to heavy snowfalls. From the Chilean side the pass is accessed through Route 199-CH

Route 199-CH

thumb|200px|Route 199-CH runs across the city of Villarrica and goes then eastward along Villarrica LakeRoute 199-CH is a branch line road going eastward from Chile Highway 5 near Freire to Mamuil Malal Pass at the border to Argentina...

, branch line which begins at the Panamerican Highway

Chile Highway 5

Chile Highway 5 or Route 5 known locally as Ruta 5 is Chile's longest route. It is part of the Panamerican Highway.-Stretch:It runs from the Peruvian border connecting with Peru Highway 1 north of Arica to Puerto Montt where it connects by ferry to the island of Chiloé...

 near Freire

Freire

Freire is a word used in the Portuguese and Galician languages to define the occupational name for a friar, or a nickname for a pious person or someone employed at a monastery...

.