Cho Oyu (or Cho Oyo) at 8,201 metres (26,906 feet) is the sixth highest mountain in the world. Cho Oyu lies in the Himalayas and is 20km west of Mount Everest on the Nepal-Tibet border. Cho Oyu means "Turquoise Goddess" in Tibetan.
Cho Oyu was first climbed on October 19, 1954 via the northwest ridge by Herbert Tichy, Joseph Joechler and Sherpa Pasang Dawa Lama of an Austrian expedition. Cho Oyu was first attempted in 1952 by an expedition led by Eric Shipton, but technical difficulties at an ice cliff above 6,650m/21,820' proved beyond their abilities.
Just a few kilometers west of Cho Oyu is Nangpa La (5,716m/18,753'), a glaciated pass that serves as the main trading route between the Tibetans and the Khumbu's Sherpas. Due to its close proximity to this pass, climbers consider Cho Oyu the easiest 8,000m peak to climb. Cho Oyu was the third 8,000m peak to be climbed after Mount Everest in May 1953 and K2 in July 1954.