K2 argued in his account of the ascent of Gasherbrum IV that while the name of K2 owes its origin to chance, its clipped, impersonal nature is highly appropriate for so remote and challenging a mountain. He concluded that it was: Andre Weil named K3 surfaces in mathematics partly after the beauty of the mountain K2. K2 lies in the northwestern Karakoram Range. It is located in the Baltistan region of Gilgit–Baltistan, Pakistan, and the Taxkorgan Tajik Autonomous County of Xinjiang, China. The Tarim sedimentary basin borders the range on the north and the Lesser Himalayas on the south. Melt waters
Three Cups of Tea cup of tea, you become family..." In April 2011, critiques and challenges of the book and Mortenson surfaced. Author Jon Krakauer alleged that a number of Mortenson's claims in the book are fictitious and accused him of mismanaging CAI funds. In 1993, mountaineer Greg Mortenson attempted to climb K2, the world's second highest mountain, located in the Karakoram range of Gilgit-Baltistan, as a way of honoring the memory of his deceased sister, Christa. As a memorial, he had planned to lay her amber necklace on the summit of K2. After more than 70 days on the mountain, Mortenson and three