The entrance of the Incas to the current Argentine territory took place in the mid-fifteenth century, occurring in the northwest and reaching, at its southern end, approximately as far as the Mendoza territory. In the first moments, this expansion does not seem to have had defined economic or strategic interests as its preponderant objective, but rather a set of corporate motivations of dominant sectors of Cuzco society (Tarragó, 2000). This occupation spanned less than a century, according to accepted chronology. However, in this brief period, the sociocultural imprint of the Inca Empire was significant. In the first place, the legacy of the Quichua language that was imposed in vast areas of northwestern Argentina, a ceramic of excellent workmanship and fine finish, in the Andean zone the use of copper and tin bronze was perceived instead of copper and arsenic used previously, in addition to innovative farming and hunting systems, among many other things Climbing AconcaguaIn the area of the Aconcagua Provincial Park, the most important discovery attributed to the Inca so far was that of a mummy belonging to a young man. An expedition carried out in 1985 by members of the Andinista Club of Mendoza found thick stone walls and a funerary bundle. They gave immediate intervention to the Institute of Archeology and Ethnology of the National University of Cuyo who, together with researchers from CONICET and other institutions, immediately scheduled an expedition to rescue the find. At the time of the unpacking, they verified that it was the body of a 7 or 8-year-old boy, male and with Aconcagua Climbvery harmonious features and dates back to about 450 years A.P. There were also findings of various elements belonging to the Huarpe culture. Undoubtedly, the greatest cultural value – at least from the point of view of contemporary history – that the area of the High Andes has, close to the area of the Provincial Park mentioned, is the crossing of the longest mountain range in the world by the Argentine army under the command of General José Francisco de San Martín in mid-January 1817. Prestigious military strategists consider this undertaking a feat from a strategic and human point of view, because in some sectors they had to travel over 3,000 meters above sea level, as was the case of the wing of the army led by General Juan Gregorio de Las Heras, through the Uspallata pass, where physical resistance and the temper of the spirit had to be optimal to withstand the inclement weather, the air with less oxygen , a large load of artillery, food and equipment of all kinds and about 20 days of marching on extremely difficult roads. General Jose Trekking AconcaguaFrancisco de San Martín crossed the Paso de los Patos, somewhat less rugged but longer than the aforementioned, and on February 12 of the aforementioned year he triumphed in the battle of Chacabuco against the royalist army. Simultaneously that day three more squadrons that crossed by different steps successfully took towns of Chile occupied by the Spanish. With these operations, enormous progress had already been made in the liberation of Chile.