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
Baltistan of mountains in the world and the biggest glaciers outside the polar regions. The Himalayas advance into this region from India, Tibet and Nepal, and north of them are the Karakoram range. Both ranges run northwest, separated by the Indus River. Along the Indus and its tributaries are many valleys. Glaciers include Baltoro Glacier, Biafo Glacier, Siachen Glacier, Trango Glacier and Godwin-Austen Glacier. Baltistan is home to more than 20 peaks of over , including K2 (the second-highest mountain on earth. Other well-known peaks include Masherbrum (also known as K1), Broad Peak, Hidden Peak, Gasherbrum II, Gasherbrum IV and Chogolisa