More than 20 people may be missing or unaccounted for after a powerful flash flood tore through part of Grand Canyon National Park, destroying footbridges, forcing evacuations and prompting officials to ask the public for help locating hikers who may have been in the area. The flooding struck Bright Angel Canyon and the Phantom Ranch […]More than 20 people may be missing or unaccounted for after a powerful flash flood tore through part of Grand Canyon National Park, destroying footbridges, forcing evacuations and prompting officials to ask the public for help locating hikers who may have been in the area. The flooding struck Bright Angel Canyon and the Phantom Ranch […]