This undated photo provided by the National Park Service shows water spraying from a break in an exposed section of the Grand Canyon trans-canyon waterline, originally covered under a path, after a flash flood event. Park officials plan to replace at least part of the decades-old and problem-plagued pipeline that plunges down into the canyon and back up the other side to supply water to South Rim hotels, campgrounds and other facilities at the northern Arizona park. (National Park Service via AP)
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