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Grand Canyon National Park ranked the deadliest

Grand Canyon National Park has the highest number of missing person reports and deaths among all the national parks in the United States, according to records obtained through a Freedom of Information Act request. Despite being smaller and receiving fewer visitors compared to many other national park sites, Grand Canyon topped the charts in missing person reports, deaths, and suicides from 2018 to early 2023.

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Phillips attributed the higher risk factors at the Grand Canyon to its peak visitation during the summer months in the desert, altitude sickness due to elevation, and the physical challenge of hiking uphill after descending into the canyon. Search and rescue efforts in the Grand Canyon pose unique challenges due to its vast and intricate terrain. It is the only national park in the U.S. with a year-round helicopter presence to assist with rescues.