The Karakoram, or Karakorum (simplified Chinese: 喀喇昆仑山脉; traditional Chinese: 喀喇崑崙山脈; pinyin: Kālǎkūnlún Shānmài; Hindi: काराकोरम, Kārākōrama; Urdu: سلسلہ کوہ قراقرم), is a large mountain range spanning the borders between Pakistan, India and China, located in the regions of Gilgit–Baltistan (Pakistan), Ladakh (India), and Xinjiang region, (China). It is one of the Greater Ranges of Asia.
The Karakoram is home to the highest concentration of peaks over 8000m in height to be found anywhere on earth, including K2, the second highest peak of the world 8,611 m (28,251 ft).
The range is about 500 km (311 mi) in length, and is the most heavily glaciated part of the world outside the polar regions. The Siachen Glacier at 70 kilometres (43 mi) and the Biafo Glacier at 63 kilometres (39 mi) rank as the world's second and third longest glaciers outside the polar regions. Some of the debris-covered Karakoram glaciers are found to be expanding but other ones are retreating.
Gasherbrum IV (Urdu: گاشر برم -4; simplified Chinese: 加舒尔布鲁木IV峰; traditional Chinese: 加舒爾布魯木IV峰; pinyin: Jiāshūěrbùlǔmù IV Fēng) is the 17th highest mountain on Earth and the 6th highest in Pakistan. It is one of the peaks in the Gasherbrum massif.
The Gasherbrums are a remote group of peaks located at the northeastern end of the Baltoro Glacier in the Karakoram range of the Himalaya. The massif contains three of the world's 8,000 metre peaks (if one includes Broad Peak). Gasherbrum is often claimed to mean "Shining Wall", presumably a reference to the highly visible west face of Gasherbrum IV; but in fact, it comes from "rgasha" (beautiful) and "brum" (mountain) in Balti, hence it actually means "beautiful mountain."