Nahuel Huapi National Park is the oldest national park in Argentina, established in 1922 as Parque Nacional de Sud and reconfigured in 1934. It surrounds Nahuel Huapi Lake in the foothills of the Patagonian Andes. The largest of the national parks in the region, it has an area of 7,050 km2 (2,720 mi2), or nearly 2 million acres. Its landscapes represent the north Patagonian Andean Zone consisting of three types, namely, the Altoandino, the Andino-Patagónico, and the Patagonian Desert. It also represents small parts of the Valdivian Rainforest.