What pre-columbian countries knew how to freeze dry food by putting it in cold mountain tops?
http://www.edsuit.nl/blog/wp-content/uploads/2009/02/800px-lake_titicaca_on_the_andes_from_bolivia.jpg There are too many pre-colombian tribes to enumerate here, but some of those cultures (not countries) that new the process of freeze drying foods at high mountain altitude, lived mostly on the upper limit of cultivation. Truly ancient highlander populations sometimes referred by the scholars as the “Vertical Archipielago”. Some of these high altitude cultures that practiced freeze drying were: * Chavín, people from the northern highlands of Peru at cordillera Blanca. * Tiahuanaco, people from Bolivia´s Lake Titicaca * Huari, people from the Southern Peruvian Sierra * Lupaca (Lupaqa), people from Bolivia´s Lake Titicaca * Karanga (Caranga), people from the Bolivian High Plateau Chavín de Huantar Fortress, located at an elevation of 3.177 meters between the Cordillera Negra and Cordillera Blanca (mountain ranges), was the capital of the Chavín people around the year 327 A.C.
