National Geographic : 1955 May
618 Barry M. Goldwater U. S. Senator Barry M. Goldwater, Flown In by Helicopter, Discovered This Natural Bridge The Arizona Senator believes this fork of Nankoweap Canyon was once a cavern, but its roof fell in, leaving an arching span. "Shadows are so thick," he says, "that a flyer is not likely to see the bridge unless he is to the east of it at midday. This shot was made at 1:30, and the gloom is already gathering." A dry waterfall towers above and beyond the arch. Above: The bridge appears as a small shadow at the head of the canyon (page 629).