Gilgit-Baltistan province to the west, a small portion of the Wakhan Corridor of Afghanistan to the north, China's Xinjiang Uyghur Autonomous Region to the northeast, the Indian-administered Jammu and Kashmir to the southeast, and the Pakistani-administered state of Azad Jammu and Kashmir to the south. Gilgit-Baltistan is home to all five of Pakistan's "eight-thousanders" and to more than fifty peaks above . Gilgit and Skardu are the two main hubs for expeditions to those mountains. The region is home to some of the world's highest mountain ranges. The main ranges are the Karakoram and the western Himalayas. The Pamir Mountains are
Karakoram them exceeding : K2, the second highest peak in the world at , Gasherbrum I, Broad Peak and Gasherbrum II. The range is about in length, and is the most heavily glaciated part of the world outside the polar regions. The Siachen Glacier at and the Biafo Glacier at rank as the world's second and third longest glaciers outside the polar regions. The Karakoram is bounded on the east by the Aksai Chin plateau, on the northeast by the edge of the Tibetan Plateau, and on the north by the river valleys of the Yarkand and Karakash rivers beyond which