Nun Kun is a mountain massif of the greater Himalayan range, located in the Indian Administered union territory of Jammu and Kashmir. It consists of two main peaks: Nun () and Kun (), separated from each other by a 4 km long snowy plateau, with a third peak of the massif, known as Pinnacle Peak (), lying at its eastern end. Nun is the tallest peak of Jammu and Kashmir, while its sister peak Kun lies in Ladakh. It is about 250 km (160 mi) east of Srinagar. The Nun Kun massif is bounded to the north by the Suru valley and the Zanskar range, flanked to the east by the Pensi La (4400 m), which separates the Suru and Zanskar Valleys, while the Kishtwar National Park and the Krash Nai river lie to its south. The rocks predominantly are stratified sedimentary rocks composed of shale and sandstone. Metamorphic rocks and granite formations are also seen at places. The area is rich in minerals, especially garnets. Mountaineering Early exploration of the massif included a visit in 1898 and three visits by Arthur Neve, in 1902, 1904, and 1910. In 1903, Dutch mountaineer Dr. H. Sillem investigated the massif and discovered the high plateau between the peaks; he reached an altitude of 6,400 m (21,000 ft) on Nun. In 1906, noted explorer couple Fanny Bullock Workman and her husband William Hunter Workman claimed an ascent of Pinnacle Peak. They also toured extensively through the massif and produced a map; however, controversy surrounded the Workmans' claims, and few trigonometrical points were given for the region, so that the map they produced was not usable. After unsuccessful attempts to climb the mountain in 1934, 1937, and 1946 the first ascent of Nun was in 1953 by a French-Swiss-Indian-Sherpa team led by Bernard Pierre and Pierre Vittoz, via the west ridge. The summit pair comprised Vittoz, a Moravian missionary to the Tibetans and an experienced alpinist, and Claude Kogan, a pioneering female mountaineer. Since then, other routes have been pioneered. The north-west face was first ascended on 27 October and 28, 1976 by seven climbers from a Czech expedition, led by F. Čejka. The first British ascent was made by Steve Berry and friends via the east ridge in 1981 (his father had attempted Nun in 1946). Italian mountaineer Mario Piacenza made the first ascent of Kun in 1913, via the north-east ridge. Fifty-eight