Gilgit-Baltistan through the region has been proposed; see Khunjerab Railway for details. At the last census (1998), the population of Gilgit-Baltistan was 870,347. Approximately 14% of the population was urban. The estimated population of Gilgit-Baltistan in 2013 was over 2 million. The population of Gilgit-Baltistan consists of many diverse linguistic, ethnic, and religious sects, due in part to the many isolated valleys separated by some of the world's highest mountains. The ethnic groups include Shins, Yashkuns, Kashmiris, Kashgaris, Pamiris, Pathans, and Kohistanis. A significant number of people from Gilgit-Baltistan are residing in other parts of Pakistan, mainly in Punjab and Karachi.
Mountains of Central Asia Mountains of Central Asia South of the northern low lands is a great belt of mountains and plateaus. The Pamir plateau in central Asia forms mountainous chains running out in different directions. The mountain chains of the Himalayas, Karakoram and Kunlun run towards the east. The plateau of Tibet, enclosed by the Himalayas and Kunlun, is the largest and highest plateau of the world. Mount Everest in the Himalayas is the highest peak in the world. The vast cool desert of Gobi is in this region. The Mountains of Central Asia are a biodiversity hot spot designated by Conservation International