The eastern and higher of the two peaks is 4,527 m, and was first ascended in 1861 from the Lysjoch up the east ridge by a 14-man team (eight Englishmen and six Swiss guides) led by J. F. Hardy and including William Edward Hall.
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The ridge as a whole (as well as the western summit) was first traversed three years later by Leslie Stephen, Edward Buxton, Jakob Anderegg and Franz Biener.
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W. E. Hall (1870) "The fatal accident on the Lyskamm", Alpine Journal, 5: 23–32