Machu Picchu Machu Picchu Machu Picchu ( or ; ; ) is a 15th-century Inca citadel, located in the Eastern Cordillera of southern Peru, on a mountain ridge above sea level. It is located in the Cusco Region, Urubamba Province, Machupicchu District in Peru, above the Sacred Valley, which is northwest of Cuzco and through which the Urubamba River flows, which cuts through the Cordillera and originates a canyon with tropical mountain climate. Most archaeologists believe that Machu Picchu was constructed as an estate for the Inca emperor Pachacuti (1438–1472). Often mistakenly referred to as the "Lost City of the Incas" (a
Inca Trail to Machu Picchu and ceremonial functions, crop production, and housing for soldiers from the nearby hilltop site of Willkaraqay, an ancient pre-Inca site first inhabited around 500 BC. The trail undulates, but overall ascends along the Kusichaka River. At the small village Wayllapampa ("grassy plain", "Wayllabamba") the trail intersects with the "Mollepata Trail" at . Small, permanent settlements are located adjacent to the trail, and Wayllapampa has approximately 400 inhabitants (130 families) spread along this portion of the trail. Pack animals—horses, mules, donkeys, and llamas—are allowed. At Wayllapampa the trail to Machu Picchu turns west and begins ascending along a tributary of the