Karakoram of the ice-age valley glacier branches and main valley glaciers, had lengths up to . During the Ice Age, the glacier snowline was about lower than today. The highest peaks of the Karakoram are: The majority of the highest peaks are in the Gilgit–Baltistan region of Pakistan. Baltistan has more than 100 mountain peaks exceeding height from sea level. The naming and division of the various subranges of the Karakoram is not universally agreed upon. However, the following is a list of the most important subranges, following Jerzy Wala. The ranges are listed roughly west to east. From west to
Balti language "Byaltae" from , which, in Tibetan, means "water gorge." The historian Ptolemy, also a general in the army of Alexander the Great, named the region "Byaltae" in his book. In fact, Baltistan is the Persian translation of "Baltiyul", "homeland of Balti." Balti people are settled on both banks of the Indus River from Kargil district in the east to Haramosh Peak in the west and from the Karakoram in the north to Deosai National Park in the south. The Balti ethnicity is primarily Tibetan in origin, with some Dardic admixture. Balti is a Tibetic language. In some rural areas, the