the twenty-six-year-old went hiking alone in canyon lands national park in the western state of utah. a huge rock became loose and sent him falling into a deep crack in the canyon. his right arm was crushed between the rock and canyon wall. aron ralston could not move. he knew his chances of survival were low because he had not told anyone where he was hiking.aron ralston spent one hundred twenty-seven hours trapped and alone. finally, after five days, he decided he had to cut off his arm in order to escape. the young climber carried out the amputation using a small, unsharpened knife. then he dragged himself from his rocky prison and hiked out to safety. aron ralston wrote a book about his experience called "between a rock and a hard place."aron ralston struggled to survive in extreme conditions. "i have one hundred fifty milliliters of water left which would keep me alive until tomorrow night if i"m lucky. so, that"s it." the young climber"s suffering increases as he battles extreme heat, lack of water and the threat of death. he eventually ran out of water, carved his name, date of birth and presumed date of death into the sandstone canyon wall, and videotaped his last goodbyes to his family.although he loses an arm, ralston becomes a more complete pers