Photograph of the view of mountains and its rock layers from a ridge south of Cropesa, Peru, taken on one of the Yale Peruvian Expeditions, 1911-1915. Photo 5236 from Herbert E. Gregory Book 13, page 2
Photograph of area around village of Ttica-ttica in the Urubamba Valley, taken on one of the Yale Pe...
Photograph of the rocky area near Cuzco known as El Rodadero de Sacsayhuaman, taken on one of the Ya...
Photograph of rock layers along the Huatanay River south of San Sebastian in the Cuzco Valley, taken...
Photograph of the view of mountains and its rock layers from a ridge south of Cropesa, Peru, taken o...
Photograph of rock layers in a mountainside of the Cuzco Valley, taken on one of the Yale Peruvian E...
Photograph of a glacially carved mountain and valley in the Cuzco area of Peru, taken on one of the ...
Photograph of a drumlin or sheepback ridge made of rock from late Carboniferous or early Permian tim...
Photograph of upland plateau southwest of Cuzco, taken on one of the Yale Peruvian Expeditions, 1911...
Photograph of the rocky area known as El Rodadero de Sacsayhuaman, taken on one of the Yale Peruvian...
Photograph of a scene in the Cuzco Valley near Huancaro, taken on one of the Yale Peruvian Expeditio...
Photograph of an uplifted plateau area west of Uchumayo, taken on one of the Yale Peruvian Expeditio...
Photograph of divided mountain spurs in the Cuzco area of Peru, taken on one of the Yale Peruvian Ex...
Photograph showing north limb of a syncline in the mountains near Huancaro, taken on one of the Yale...
Photograph of upturned sandstone layers in a mountain near San Geronimo, Peru, taken on one of the Y...
Photograph of sedimentary terrace deposits and rock strata near Huancaro in the Cuzco Valley, taken ...
Photograph of area around village of Ttica-ttica in the Urubamba Valley, taken on one of the Yale Pe...
Photograph of the rocky area near Cuzco known as El Rodadero de Sacsayhuaman, taken on one of the Ya...
Photograph of rock layers along the Huatanay River south of San Sebastian in the Cuzco Valley, taken...
Photograph of the view of mountains and its rock layers from a ridge south of Cropesa, Peru, taken o...
Photograph of rock layers in a mountainside of the Cuzco Valley, taken on one of the Yale Peruvian E...
Photograph of a glacially carved mountain and valley in the Cuzco area of Peru, taken on one of the ...
Photograph of a drumlin or sheepback ridge made of rock from late Carboniferous or early Permian tim...
Photograph of upland plateau southwest of Cuzco, taken on one of the Yale Peruvian Expeditions, 1911...
Photograph of the rocky area known as El Rodadero de Sacsayhuaman, taken on one of the Yale Peruvian...
Photograph of a scene in the Cuzco Valley near Huancaro, taken on one of the Yale Peruvian Expeditio...
Photograph of an uplifted plateau area west of Uchumayo, taken on one of the Yale Peruvian Expeditio...
Photograph of divided mountain spurs in the Cuzco area of Peru, taken on one of the Yale Peruvian Ex...
Photograph showing north limb of a syncline in the mountains near Huancaro, taken on one of the Yale...
Photograph of upturned sandstone layers in a mountain near San Geronimo, Peru, taken on one of the Y...
Photograph of sedimentary terrace deposits and rock strata near Huancaro in the Cuzco Valley, taken ...
Photograph of area around village of Ttica-ttica in the Urubamba Valley, taken on one of the Yale Pe...
Photograph of the rocky area near Cuzco known as El Rodadero de Sacsayhuaman, taken on one of the Ya...
Photograph of rock layers along the Huatanay River south of San Sebastian in the Cuzco Valley, taken...