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
Gilgit-Baltistan Highway (KKH), which was completed in 1978. The Karakoram Highway connects Islamabad to Gilgit and Skardu, which are the two major hubs for mountaineering expeditions in Gilgit-Baltistan. The journey from Rawalpindi/Islamabad to Gilgit takes approximately 20 to 24 hours. Landslides on the Karakoram Highway are very common. The Karakoram Highway connects Gilgit to Tashkurgan Town, Kashgar, China via Sust, the customs and health-inspection post on the Gilgit-Baltistan side, and the Khunjerab Pass, the highest paved international border crossing in the world at . Northern Areas Transport Corporation (NATCO) offers bus and jeep transport service to the two hubs and several