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American climber Aron Ralston survived one of the most extreme self-rescue stories ever recorded, after becoming trapped alone in a remote Utah canyon.

News18
On April 26, 2003, 27-year-old adventurer and outdoorsman Aron Ralston went on a weekend hike in Bluejohn Canyon in Utah’s desert region, known for its narrow canyons and rocky cliffs. However, things took a drastic turn within hours.
As he was descending through the narrow path of the valley, a huge boulder slid out from under him. The rock, estimated to weigh several hundred kilograms, shattered, pinning his right arm tightly to the canyon wall. Ralston found himself alone, without informing anyone exactly where he was going, trapped deep in the valley with almost no chance of immediate rescue.
At first, he tried everything he could think of to free himself.
Ralston tried to break the rock with a small multi-tool and tried to rig his climbing gear to move the rock, but nothing worked. As the days passed, his supplies of food and water quickly ran out. He lived on small amounts of water and the little food he carried into the valley. According to later interviews and his memoirs, he began drinking his own urine after the dehydration became severe.
Completely isolated, he began recording farewell messages to his family on a video camera, thinking he might not survive.
After nearly five days of being held captive in the valley, Ralston realized the only way out was to amputate his arm.
Using the dull blade of his multi-tool, he first broke the bones in his forearm and then cut away the remaining tissue. The process took about an hour. Once he was released, he still faced a huge challenge. Weak from dehydration and loss of blood, Ralston climbed out of the canyon, rappelled down a cliff, and walked several miles through the desert before finally encountering a family of hikers who alerted authorities.
Rescuers later said he likely would not have been able to survive much longer.
Ralston’s story quickly became one of the world’s most famous survival novels, and later inspired the 2010 film 127 Hours starring James Franco. Despite the loss of his arm, Ralston returned to climbing and continued his extreme outdoor adventures. He has since spoken extensively about survival, resilience, and the dangers of exploring the wilderness.
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