New Jersey Woman Dies of Hypothermia Near Summit of Mount Marcy

19 February 2026 U.S. News

KEENE, N.Y. — Brianna Mohr, a 21-year-old hiker from New Jersey, tragically died of hypothermia after slipping off a trail near the summit of Mount Marcy, New York’s tallest peak, during a winter hike on February 12. The New York State Forest Rangers found Mohr after an extensive search prompted by a 911 call she made, reporting that she and her dog were unable to find their way back to the trail.

According to the New York State Police, rangers responded to the distress call around 3 p.m. and located Mohr at approximately 9 p.m. near the summit. Despite immediate efforts, she showed no signs of life and was later pronounced dead at the scene. An autopsy confirmed hypothermia as the cause of death.

Mohr had been hiking with her dog, which was unharmed and rescued safely by the search teams. The incident highlights the dangers of winter hiking in the Adirondacks, where temperatures on that day ranged from -8 to 20 degrees Fahrenheit, according to data from the National Weather Service. Such frigid conditions can rapidly lead to life-threatening hypothermia, especially when hikers become stranded or exposed to the elements without adequate gear.

Mount Marcy, located in the Adirondack High Peaks region, is a popular destination for hikers but poses significant risks during winter months. The trail to the summit is known for its steep and icy terrain, which can become treacherous under snow and freezing temperatures. The New York State Department of Environmental Conservation advises hikers to prepare thoroughly for winter conditions, including carrying proper clothing, navigation tools, and emergency supplies.

This incident follows a troubling pattern of hypothermia cases in the region; more than 20 hikers have required rescue from snowy conditions in recent months, many of whom were reportedly ill-prepared for the harsh environment. The Adirondack Park Agency and state authorities continue to emphasize the importance of safety and preparedness when venturing into the backcountry during winter.

The tragic loss of Brianna Mohr serves as a somber reminder of the unforgiving nature of winter wilderness and the critical need for caution. Hikers are encouraged to check weather forecasts, inform others of their plans, and carry communication devices to call for help if needed. The National Park Service also provides guidelines on winter hiking safety that can help prevent such tragedies.

Authorities are investigating the circumstances surrounding Mohr’s fall and urge the public to respect trail warnings and exercise prudence when hiking in extreme weather. Meanwhile, search and rescue teams remain vigilant and ready to respond to emergencies in the Adirondacks, underscoring the ongoing challenges posed by winter outdoor recreation in New York State.

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Priya Desai covers technology, platforms and data privacy, with a focus on how AI, social media and digital policy are reshaping work, speech and daily life.
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