The National Park Service says James Charles Patrick, of Littleton, was climbing a glacier with two companions shortly before noon on Saturday when he fell more than 1,000-feet to his death.
Patrick carried the rope used by all three, which left the other two stuck on the mountainside. They called for help with a cell phone.
Rangers reached the two with ropes after about four hours and the climbers made it out safely from the glacier near Taylor and Powell peaks.
Two other rangers stayed with Patrick's body overnight until it was flown out Sunday morning.