K2, at 8,611 metres (28,251 ft) above sea level, is the second-highest mountain on Earth, after Mount Everest at 8,849 metres (29,032 ft). It lies in the Karakoram range, partially in the Gilgit-Baltistan region of Pakistan-administered Kashmir and partially in the China-administered Trans-Karakoram Tract in the Taxkorgan Tajik Autonomous County of Xinjiang.
K2 from Broad Peak Base Camp
Montgomerie's original sketch from 1856 in which he applied the notation K2
View above Camp-IV of K2
The west face of K2 taken from the Savoia Glacier, on the 1909 expedition
The Karakoram is a mountain range in the Kashmir region spanning the border of Pakistan, China, and India, with the northwestern extremity of the range extending to Afghanistan and Tajikistan. Most of the Karakoram mountain range falls under the jurisdiction of Gilgit-Baltistan, which is controlled by Pakistan. Its highest peak, K2, is located in Gilgit-Baltistan, Pakistan. It begins in the Wakhan Corridor (Afghanistan) in the west, encompasses the majority of Gilgit-Baltistan, Pakistan and extends into Ladakh and Aksai Chin.
Baltoro Glacier in the Central Karakoram Gilgit−Baltistan, Pakistan
The black gravel of Karakoram mountains, as seen near Pakistan's Biafo Glacier
Hunza Valley in the Gilgit-Baltistan region administered by Pakistan
K2