Daniel Lee Mazur is a mountain climber, trekker, and expedition leader who has ascended nine of the world's highest summits, including Mount Everest and K2. In addition, he is known for several high altitude mountain rescues: the 1991 rescue of Roman Giutashvili from Mount Everest, the rescue of Gary Ball from K2 in 1992, the rescue in 2006 of Australian climber Lincoln Hall from Mount Everest, and the rescue of British mountaineer Rick Allen from Broad Peak. In 2018, Daniel Mazur was awarded the Sir Edmund Hillary Mountain Legacy Medal "for remarkable service in the conservation of culture and nature in mountainous regions." Rescue cases Roman Giutashvili rescue Having reached the summit of Mount Everest on an expedition together with Anatoli Boukreev in 1991, Mazur was involved in an early rescue of Georgian climber Roman Giutashvili from just below the summit of Everest. Gary Ball rescue In 1992 on K2, Mazur and his team worked together to rescue Gary Ball from 8300 metres. Gary was struck down by a pulmonary embolism. The rescue took several days, descending technical ground, and rescuers included Rob Hall, Scott Fischer, Ed Viesturs, Neal Beidleman and Jon Pratt Lincoln Hall rescue At 7:30 am on May 26, 2006, Mazur and his fellow ascending climbers Andrew Brash (Canada), Myles Osborne (UK) and Jangbu Sherpa (Nepal) were eight hours into their planned ascent to the summit up the North Ridge of Mount Everest, located along a severe ridge line, dropping off 10,000 feet to one side and 7,000 feet to the other. Two hours below the summit, conditions seemed perfect. There was no wind and no clouds and they were feeling strong and healthy. When rounding a corner on the trail to the summit the team encountered Lincoln Hall, an Australian climber at an altitude of approximately 28,000 feet. Hall had been 'left for dead' by his own expedition team on the descent from the summit the previous day at around 8600 meters on Everest after collapsing, failing to respond to prolonged treatment and being unable to walk. He was now sitting alone on the trail with his jacket around his waist, no hat and no gloves, and without any of the proper equipment for survival in such conditions. The group found he was suffering from symptoms of cerebral oedema, frostbite and dehydration as he was hallucinating, mumbling deliriously and appeared generally incoherent in his responses to