LIMA, PERU.- A great archaeological complex in the jungle zone of el Cusco was presented yesterday as the major and most important Inca deposit discovered in the last four decades in Peru, according to the National Geographic Society, who conducted the scientific expedition. In the complex of Corihuayrachina, some 1,000 kilometers to the southeast of Lima, the expedition, headed by American archaeologist Peter Frost and the Peruvian Alfredo Valencia, discovered twelve archaeological zones where they found remainders of circular buildings, warehouses, workshops of ceramics, tombs, bones and of ceramic objects. Frost said that the complex possesses more than one hundred structures, including ceremonial platforms, cemeteries, terraces, irrigation channels, and a pyramid.