Andrew Irvine

Andrew Comyn Irvine (1902–1924) was a British mountaineer who disappeared with George Mallory during their 1924 attempt to climb Mount Everest.

1924 British Mount Everest expedition: The British expedition that made the first serious attempt to climb Mount Everest from Tibet in 1924. Irvine joined this expedition and vanished during its summit attempt.
Mount Everest northeast ridge: A high-altitude route to Everest’s summit from Tibet, crossing a series of exposed ridges and rock steps. Irvine and Mallory attempted the summit by this route.
Noel Odell: A British geologist and mountaineer who took part in the 1924 Everest expedition and last saw Mallory and Irvine alive. Odell’s sighting is the principal eyewitness account of their final ascent.
Mallory's body: George Mallory’s remains, discovered on Mount Everest in 1999 below the northeast ridge. The body’s location informs reconstructions of the pair’s descent, but Irvine remains missing.
George Mallory: A British mountaineer who disappeared with Andrew Irvine on Mount Everest in 1924. Mallory was Irvine’s climbing partner on their final ascent.
Oxygen equipment in mountaineering: Apparatus that supplies supplemental oxygen to climbers at high altitude. Irvine helped modify and manage the expedition’s oxygen equipment.
Geoffrey Bruce: A British Army officer and mountaineer who took part in early British Everest expeditions. Bruce shared the expedition environment in which Irvine’s technical abilities proved useful.
Mallory and Irvine summit controversy: The debate over whether George Mallory and Andrew Irvine reached Everest’s summit in 1924. The possibility that Irvine reached the summit remains unconfirmed.
Mount Everest: Earth’s highest mountain above sea level, on the border between Nepal and China. Its north face and summit ridge were the setting of Irvine’s last climb.
Second Step (Mount Everest): A steep rock barrier on Everest’s northeast ridge, above 8,600 metres. Whether the pair crossed this obstacle is central to assessing their possible summit progress.

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