Spantik-Sosbun Mountains Spantik-Sosbun Mountains The Spantik-Sosbun Mountains are a subrange of the Karakoram range in Gilgit-Baltistan, Pakistan. The highest peak is Spantik, 7,027 m (23,054 ft). The other namesake peak is Sosbun Brakk, 6,413 m (21,040 ft). The Spantik-Sosbun Mountains are a narrow range, about 120 km (80 mi) long, trending roughly east-west. On the north, the range is bounded by the important Hispar and Biafo Glaciers, across which lie the Hispar Muztagh and Panmah Muztagh respectively. On the southwest, the Barpu Glacier and the longer Chogo Lungma Glacier separate the range from the Rakaposhi-Haramosh Mountains; the pass known as the Polan
K2 name K2 is derived from the notation used by the Great Trigonometric Survey of British India. Thomas Montgomerie made the first survey of the Karakoram from Mount Haramukh, some to the south, and sketched the two most prominent peaks, labeling them K1 and K2. The policy of the Great Trigonometric Survey was to use local names for mountains wherever possible and K1 was found to be known locally as Masherbrum. K2, however, appeared not to have acquired a local name, possibly due to its remoteness. The mountain is not visible from Askole, the last village to the south, or from