Irvine,” revealing that it probably belonged to British climber Andrew “Sandy” Irvine. Irvine’s disappearance on Everest in 1924, alongside his compatriot George Mallory, is one of mountaineering’s biggest mysteries – with a solution that has the potential to change history. That is, until this latest expedition, when the National Geographic team, which included “Free Solo” co-director Jimmy Chin, discovered a foot inside what they believe is Irvine’s boot. Irvine was 22 years old when he disappeared on Mount Everest. “I have lived with this story since I was a seven-year-old when my father told us about the mystery of Uncle Sandy on Everest,” she added.

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Persons: Andrew “ Sandy ” Irvine, George Mallory, ”, Jimmy Chin, Sandy, ” Chin, Sandy might’ve, Erich Roepke, Chin, Irvine, Irvine’s, Julie Summers, Summers, “, Uncle Sandy Organizations: CNN, Geographic, Everest, National Geographic, Tibet Mountaineering Association, Mount, Mount Everest Foundation, Geographical Society, Getty, PA Media Locations: Irvine, British, . Irvine, China, Mount Everest, Everest