Deo Tibba, Lahul. In June 1955 the German, Rudolf Rott, made the second ascent of the lower (19,687 feet) of Deo Tibba’s two summits. He also climbed Malana Peak. In August and September 1956 the Frenchman André Guillemot and Sherpa Nima Tensing were in the same region. They climbed three 21,000- to 22,000-foot peaks in the Lahul Range from a 19,000-foot camp near the Kulti valley beyond the Rohtang Pass. After recrossing the pass, they climbed a fine rock tower in the Deo Tibba group.