Rock formations in Ischigualasto Provincial Park (flickr: tachameladoble)

“Before the Spanish conquest, the area was inhabited by several groups of aborigines, usually semi-nomadic hunters and gatherers. The cultural value of Ischigualasto-Talampaya is of great significance, even though a detailed study of rock art, artefacts and archaeological sites has only recently begun. The site lies on the southernmost area of late Inca influence. At Talampaya, many sites have been unearthed and are easily accessible. At Ischigualasto, six sites of rock art have been discovered. In addition, cave and rock overhang habitation sites, as well as burial sites, campgrounds and tool-making areas have also been found. It is possible to classify much of the rock art in terms of geometric figures, human figures and combined scenes.” — unesco.org