
Cho Oyu, the world's sixth highest mountain at 8,201m, lies on the Nepal/Tibet border about 30km west of Mt Everest at the head of Gokyo valley. It was first attempted during the 1952 Everest reconnaissance by a British team lead by Eric Shipton. The mountain was first climbed by Austrians in 1954 who reached the summit via the north-west ridge using a route though Tibet from the Nangpa–La - not strictly a legal route. An India expedition made the second ascent in 1958 and a German Ski expedition made the third ascent in 1964. Today more than 1,000 people have stood on the summit as the ascent of Cho Oyu through Tibet is not particularly difficult. Of all Nepal’s 8000m peaks, Cho Oyu is second only to Everest in the number of expeditions and successful ascents.