Cho Oyu is the sixth-highest mountain in the world, rising to 8,188 metres in the Himalayas.
Its name is commonly translated from Tibetan as “Turquoise Goddess.” The mountain lies on the China–Nepal border, about 20 kilometres west of Mount Everest. Cho Oyu is part of the Mahalangur Himalaya, the same mountain group that includes Everest, Lhotse and Makalu.
An Austrian expedition made the first confirmed ascent in 1954, when Herbert Tichy, Joseph Jöchler and Sherpa Pasang Dawa Lama reached the summit. Cho Oyu is often described as one of the more accessible eight-thousanders because its normal route has comparatively moderate technical difficulty, although altitude, cold and avalanches remain serious hazards.
The peak is sometimes confused with Makalu or Dhaulagiri, but Cho Oyu ranks sixth by elevation. Modern measurements generally give its height as 8,188 metres, while older references may show slightly different figures.