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 LONDON (Reuters) — British and American explorers have found a large Inca town that was lost for more than 400 years after hacking their way through the dense jungles of Peru.

Working on a tip from a local mule driver and their own knowledge of the area, the four-man team spent three weeks hacking through forests of the Peruvian interior with machetes. 
 There, completely overgrown and at the bottom of a valley carved by the Rio Yanama river 1,850 metres (6,069 ft) above sea level, they found the ancient city at a site called Cota Coca. 
 …The team’s report said a preliminary survey showed that Cota Coca contained at least 30 stone-built structures, including a 75 ft long meeting hall, grouped around a great central plaza…