Bottleneck (K2) Bottleneck (K2) The Bottleneck is a location along the South-East Spur, known also as Abruzzi Spur— the most used route to the summit of K2, the second-highest mountain in the world, in the Karakoram, on the border of Pakistan and China. The Bottleneck is a narrow couloir, which is overhung by seracs from the ice field east of the summit. The couloir is located only 400m below the summit, and climbers have to traverse about 100m exposed to the seracs to pass it. Due to the height (8200m) and the steepness (50-60 degrees) this stretch is the most dangerous part
Mountains of Central Asia Mountains of Central Asia South of the northern low lands is a great belt of mountains and plateaus. The Pamir plateau in central Asia forms mountainous chains running out in different directions. The mountain chains of the Himalayas, Karakoram and Kunlun run towards the east. The plateau of Tibet, enclosed by the Himalayas and Kunlun, is the largest and highest plateau of the world. Mount Everest in the Himalayas is the highest peak in the world. The vast cool desert of Gobi is in this region. The Mountains of Central Asia are a biodiversity hot spot designated by Conservation International