Title: Machu Picchu engineering archaelogical exploration of September 2002
Subjects: Inca architecture, Conservation and restoration, Irrigation engineering, Paleohydrology, Excavations (Archaeology), Antiquities
Places: Machu Picchu Site (Peru), Huayna Picchu Site (Peru), Qhapaq Ñan, Peru, Urubamba River Valley, Urubamba River Valley (Peru)