The body of Chenoa Nickerson, a 33-year-old woman from Gilbert, Arizona, was found in the Colorado River after she went missing following a flash flood in Grand Canyon National Park. Nickerson was hiking near Havasu Creek when the flood struck, sweeping her into the creek without a life jacket. Her body was discovered by a rafting group and recovered by park rangers on Sunday. Over 100 people, including her husband, were safely evacuated from the area by the Arizona National Guard using Blackhawk helicopters. The Havasupai Tribe's reservation, which is prone to such flooding, was temporarily closed to visitors. An investigation into the incident is being conducted by the National Park Service and the Coconino County Medical Examiner.