Archaeologists have discovered a lost city carved into the Andes Mountains by the mysterious Chachapoya tribe
The settlement covers some 12 acres and is perched on a mountainside in the remote Jamalca district of Utcubamba province in the northern jungles of Peru's Amazon.
The buildings found on the Pachallama peak are in remarkably good condition, estimated to be over 1,000 years old and comprised of the traditional round stone houses built by the Chachapoya, the 'Cloud Forest People'.
The area is completely overgrown with the jungle now covering much of the settlement but explorers found the walls of the buildings and rock paintings on a cliff face.
The remote nature of the site appears to have protected the site from looters as archaeologists found ceramics and undisturbed burial sites.
Archaeologist Benedicto Pérez Goicochea said: "The citadel is perched on the edge of an abyss.
"We suspect that the ancient inhabitants used this as a lookout point from where they could spot potential enemies."
The ruins were initially discovered by local people hacking through the jungle. They were drawn to the place due to the sound of a waterfall.
The local people "armed with machetes opened a path that arrived at the place where they saw a beautiful panorama, full of flowers and fauna, as well as a waterfall, some 500 metres high," said the mayor of Jamalca, Ricardo Cabrera Bravo.
Initial studies have found similarities between the new discovery and the Cloud Peoples' super fortress of Kulep, also in Utcubamba province, which is older and more extensive that the Inca Citadel of Machu Picchu, but has not been fully explored or restored.
Little is known about the Chachapoya, except that they had been beaten into submission by the mighty Incas in 1475.
When in 1535 the Spanish Conquistadores arrived in Peru, they found willing allies in the Cloud People for their fight against the Incas.
Spanish texts from the era describe the Cloud People as ferocious fighters who mummified their dead.
They were eventually wiped out by small pox and other diseases brought by the Europeans.
The women of the Chachapoya were much prized by the Incas as they were tall and fair skinned. The Chronicler Pedro Cieza de León offers wrote of the Chachapoyas.
"They are the whitest and most handsome of all the people that I have seen in Indies, and their wives were so beautiful that because of their gentleness, many of them deserved to be the Incas' wives and to also be taken to the Sun Temple."