Machu Picchu Valley. He organized the 1911 Yale Peruvian Expedition in part to search for the Inca capital, which was thought to be the city of Vitcos. He consulted Carlos Romero, one of the chief historians in Lima who showed him helpful references and Father Antonio de la Calancha’s Chronicle of the Augustinians. In particular, Ramos thought Vitcos was "near a great white rock over a spring of fresh water." Back in Cusco again, Bingham asked planters about the places mentioned by Calancha, particularly along the Urubamba River. According to Bingham, "one old prospector said there were interesting ruins at Machu Picchu,"
Vilcabamba, Peru the site where Tupac Amaru fled after the Spanish captured Vitcos. Bingham speculated in his book Lost City of the Incas that Machu Picchu was the lost city of Vilcapampa the Old, in part because Bingham only saw a small portion of Espíritu Pampa. It remained for Gene Savoy to discover the full extent of the site in 1964, and later evidence did confirm the site was indeed the old Vilcabamba. In the 1960s, the explorations and discoveries of Antonio Santander Casselli and Gene Savoy finally associated the "Espíritu Pampa" site with the legendary Vilcabamba. Their 1970 book "Antisuyo" brought