Hikers face urgent Grand Canyon heat warning after teen’s death on popular trail

An 18-year-old hiker’s decease connected 1 of the Grand Canyon’s best-known trails is underscoring a predominant summertime danger: Extreme vigor tin overwhelm adjacent immoderate of the healthiest hikers.

The hiker, whose sanction has not yet been released, was connected a time hike from the South Rim to the Colorado River and backmost via the Bright Angel Trail erstwhile helium began experiencing "heat-related symptoms" beneath Havasupai Gardens connected June 3, the National Park Service (NPS) said.

Grand Canyon National Park rangers recovered the hiker astir 30 feet beneath the way successful a distant country adjacent Garden Creek. Despite "rapid effect efforts," lifesaving measures were unsuccessful, according to the park.

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"Heat changeable sets successful erstwhile vigor builds up faster than the assemblage tin shed it and the halfway somesthesia climbs past a captious and idiosyncratic threshold," Dr. Jeremy Joslin, a objective subordinate prof of exigency medicine astatine the State University of New York Upstate Medical University, told Fox News Digital.

"The encephalon begins to beryllium injured, producing confusion, disorientation, nonaccomplishment of coordination, illness and nonaccomplishment of consciousness," said Joslin, who is besides an exigency doc (he did not dainty the hiker and was not progressive successful the case). 

The caller decease of a teen hiker (not pictured) connected a fashionable Grand Canyon way is reigniting a speech astir the dangers of hiking successful utmost heat. (iStock)

Temperatures astatine the clip of the young hiker's decease were astir 109°F successful Grand Canyon National Park, arsenic FOX Weather reported.

Grand Canyon’s rim-to-river routes tin beryllium deceptive due to the fact that the steepest carnal trial comes connected the mode out, aft hikers person descended into hotter terrain, experts say.

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Bright Angel Trail is 1 of the park's astir recognizable routes. It drops 4,460 feet implicit 7.8 miles from the South Rim to the Colorado River, according to the NPS's Bright Angel Trail Guide.

Officials pass that hikers tin look unsafe heat, dehydration and a grueling ascent backmost retired of the canyon.

Bright Angel Trail, pictured here, is 1 of Grand Canyon National Park’s astir recognizable routes. (iStock)

"The interior canyon is considerably hotter than the rim, determination is small shade, the hardest agelong is the ascent retired erstwhile a hiker is already depleted — and assistance tin beryllium acold away," Joslin said.

The parkland warns visitors against attempting the South Rim-to-river-and-back travel arsenic a time hike during summertime heat, the NPS website says.

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Park officials person issued akin warnings previously. 

In July 2023, a 57-year-old pistillate died aft becoming unconscious during an eight-mile hike successful the distant Tuweep country of Grand Canyon National Park, wherever temperatures were supra 100 degrees, according to the NPS.

Rim-to-river routes, pictured here, tin beryllium deceptive due to the fact that the astir hard agelong comes connected the mode out, experts say. (iStock)

In June 2021, Michelle Meder, 53, became disoriented and aboriginal unconscious connected the Tonto Trail adjacent Monument Creek. Officials judge her decease was heat-related, NPS reported.

The signifier is not constricted to the trails astatine the Grand Canyon. 

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"You bash not request humidity for vigor changeable to occur. The Grand Canyon is blistery and precise dry, and that is precisely the danger," Joslin said.

"Because the aerial is truthful dry, sweat evaporates astir instantly. A idiosyncratic tin beryllium sweating heavy and not consciousness it," helium added. 

Heat unwellness tin beryllium mistaken for fatigue, thirst oregon exhaustion, which tin origin an contented connected the Bright Angel Trail, pictured here. (iStock)

Early carnal symptoms of vigor unwellness whitethorn beryllium mistaken for fatigue, thirst oregon exhaustion, according to Joslin.

"Any alteration successful intelligence presumption oregon behavior, specified arsenic confusion, disorientation, slurred oregon irrational speech, oregon acting retired of character, is the reddish flag, and it means you should chill the idiosyncratic immediately," Joslin said.

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Park rangers counsel hikers to debar the interior canyon during the vigor of the day, peculiarly betwixt 10 a.m. and 4 p.m., erstwhile exposed trails tin go dangerous.

"Do the hard miles successful the chill aboriginal morning, remainder successful the shadiness during highest heat, and acceptable your turnaround by the clip and the somesthesia alternatively than by however you feel," Joslin said.

The North Kaibab Trail, pictured here, descends beneath the Supai Tunnel toward Bright Angel Canyon. (iStock)

Sports drinks and salty snacks whitethorn assistance hikers regenerate sodium mislaid done sweat, but Joslin said they cannot support against vigor stroke.

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"Electrolyte drinks code hydration and sodium, but they bash not forestall vigor stroke," helium said.

Over-hydration tin besides make a aesculapian emergency, helium said.

Experts accidental exertional vigor changeable among hikers is antithetic from vigor changeable seen among aged oregon medically susceptible people. (iStock)

"The azygous astir important regularisation is to chill archetypal arsenic soon arsenic possible. Onsite cooling earlier evacuation oregon transport to the infirmary is the cardinal proposal of the National Athletic Trainers' Association's guidance connected exertional vigor illness," helium said.

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The Grand Canyon decease remains nether probe by the NPS and the Coconino County Medical Examiner’s Office.

Fox News Digital reached retired to the Grand Canyon Office of Communications and the NPS for further comment.