Geography of Gilgit–Baltistan in the south and southwest (separated by the Babusar Pass or Babusar Top), the Ghizar District in the north and northwest, and the Gilgit District in the north and northeast. The valleys of Darel-Tangir, which are currently part of Gilgit-Baltistan, were formerly part of Pakistan. District Diamer is divided into two sub-divisions: one is Chilas and the other one is Darel/Tangir. Village Juglote is headquarters of sub-division Darel/Tangir while Chilas is the headquarters of other sub-division and also headquarters of district Diamer. Before the Karakoram Highway was opened in 1978, the only road to Gilgit town from the south was
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