Trekking Peaks of Nepal, Ascents and Attempts. In an effort to climb all 18 trekking peaks in Nepal as catalogued by Bill O’Connor’s book, The Trekking Peaks of Nepal, the British Army Nepal Expedition sent different teams to all the respective mountains with the objective of making “field observations” of the routes described in the book while climbing the routes. Changes were to be noted in updated descriptions that would be the basis for a new publication on the same topic. Fifteen out of the 18 peaks were summitted. Those that defeated attempts were Hiunchuli, Singu Chuli and Ramdung. Further details are lacking.