Las Leñas is a ski resort in Argentina, located in the western part of Mendoza Province. It has reliable powder snow and climate for extreme and off-piste skiing. Construction of the ski center began January 1983, and by July 1983, it opened with a 300 bed hotel. The ski area has a good diversity of slopes ranging from very easy to extreme, including a good range of off-piste areas apt for extreme skiing. The skiable area base starts at an altitude of 2,240 m above mean sea level and goes up to 3,430 m (11,253 ft) for a total drop of 1,190 m (3,904 ft). The skiable surface amounts to 2.3 km2 (1 sq mi), with 27 runs and a maximum non-stop skiable distance of 7 km (4 mi). The total ski area reachable by land is the largest in South America. It currently houses Piscis Hotel, the highest casino by elevation in the world.

Mendoza, officially Province of Mendoza, is a province of Argentina, in the western central part of the country in the Cuyo region. It borders San Juan to the north, La Pampa and Neuquén to the south, San Luis to the east, and the republic of Chile to the west; the international limit is marked by the Andes mountain range. Its capital city is the homonymous city of Mendoza.