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The Five Most Difficult Routes

  • Kangshuk face or the east which was declared insurmountable by George Mallory in 1921 because avalanches threaten its slopes.
  • The north face, one of the toughest to climb.
  • The north-east ridge poses high technical problems at high altitudes.
  • The west ridge/north face ascent first attempted by the US. A rare route.
  • The west ridge route.
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