Xinjiang and the Borohoro Mountains in the north, is the basin of the Ili River, which flows into Kazakhstan's Lake Balkhash; an even smaller wedge farther north is the Emin Valley. Other major mountain ranges of Xinjiang include the Pamir Mountains and Karakoram in the southwest, the Kunlun Mountains in the south (along the border with Tibet), and the Altai Mountains in the northeast (shared with Mongolia). The region's highest point is the mountain K2, 8611 metres above sea level, in the Karakoram Mountains on the border with Pakistan. Much of the Tarim Basin is dominated by the Taklamakan Desert. North
K2 unable to keep pace. The mountain was first surveyed by a European survey team in 1856. Team member Thomas Montgomerie designated the mountain "K2" for being the second peak of the Karakoram range. The other peaks were originally named K1, K3, K4, and K5, but were eventually renamed Masherbrum, Gasherbrum IV, Gasherbrum II, and Gasherbrum I, respectively. In 1892, Martin Conway led a British expedition that reached "Concordia" on the Baltoro Glacier. The first serious attempt to climb K2 was undertaken in 1902 by Oscar Eckenstein, Aleister Crowley, Jules Jacot-Guillarmod, Heinrich Pfannl, Victor Wessely, and Guy Knowles via the Northeast