National Geographic : 1913 Apr
Photo by Hiram Bingham THE LARGEST CAVE AT MACHU PICCHU A flashlight view of the interior of the largest cave, at the base of one of the great precipices of Huayna Picchu. The cave is nearly 90 feet in length and is partly lined with cut stones. It had long been known to the Indian treasure-hunters of the neighborhood, and consequently yielded no results (see pages 446-447). Photo by Hiram Bingham THE CENTER OF THE BEST COLLECTING DISTRICT: MACHU PICCHU Archeological Engineer Erdis standing near one of the boulders within the city of Machu Picchu, in the vicinity of which he made the discovery that articles of bronze were likely to be found 2 or 3 feet underground (see page 449).