Location: It is situated in the northwest side of Santa Cruz.
Surface: It covers a 115.000 hectares.
Created: was created in 1937 in order to protect the large richness of the region: “lengas” forests, two lake's systems, a patagonic steppe section, fossils and a varied fauna.
Vegetation: mata torcida, ñire, lenga.
Animals: guanacos, puma, red fox, grey fox, choique or ñandú petiso, pilquín or chinchillón anaranjado, huemul, flamencos, hualas, black neck swan, vapor ducks, cauquenes.