Anatoli Nikoliavich Boukreev, Russian: Анато́лий Никола́евич Букре́ев, (January 16, 1958 – December 25, 1997) was a Kazakhstani (USSR/Kazakhstan) climber who made ascents of seven of the 8,000 metre peaks without supplemental oxygen. In total he made 18 successful ascents on peaks above 8000 m (1989 – 1997). Boukreev was lost under an avalanche on Annapurna. The direct transliteration of his Russian name is Anatolij Nikolaevich Bukreev.
Peter Boardman (1950–1982) was a British mountaineer and author. He is best known for a series of bold and lightweight expeditions to the Himalaya, often in partnership with Joe Tasker, and for his contribution to mountain literature. Boardman and Tasker died on the North East Ridge of Mount Everest in 1982. The Boardman Tasker Prize for Mountain Literature was established in their memory.
Ed Viesturs (born July 22, 1959) is a high-altitude mountaineer. He is the first American to have climbed all fourteen of the world's eight-thousander mountain peaks, and the fifth person to do so without using supplemental oxygen. He has summited peaks of over 8,000 meters on 21 occasions, including Mount Everest seven times; only two other climbers, Phurba Tashi Sherpa Mendewa and Juanito Oiarzabal, have more high-altitude ascents.
Mountaineer Don Whillans heard odd cries and saw a dark figure on a distant ridge while climbing Mount Annapurna, Nepal, in March 1970. The next day he found its tracks at 13,000 feet and watched the Yeti again through binoculars for 20 minutes.