English: Bird's-eye view of Machu Picchu (during clearing) and the Urubamba Cañon
Original caption
English: On top of the ridge at the foot of the hill called Huayna Picchu and protected on all sides by precipices and on three sides by the rapids of the Urubamba River, the wonderful Inca city of Machu Picchu, discovered in 1911, was one of the principal scenes of action of the Peruvian Expedition of 1912. The mountains in the distance forming the fringe of the Grand Cañon of the Urubamba are from five to seven thousand feet above the river, which at this point is six thousand feet above the sea.
Bingham, Hiram (1913). "In the Wonderland of Peru: The Work Accomplished by the Peruvian Expedition of 1912, Under the Auspices of Yale University and the National Geographic Society.". The National Geographic Magazine24 (4). National Geographic Society.
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