Abruzzi Spur in the context of "Bottleneck (K2)"

The Bottleneck is a location along the South-East Spur (also known 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 400 m (1,300 ft) below the summit, and climbers have to traverse about 100 m (330 ft) exposed to the seracs to pass it. Due to the height of 8,200 m (26,900 ft), and the steepness of 50 to 60 degrees, this stretch is the most dangerous part of the route. According to AdventureStats, 13 out of the last 14 fatalities on K2 have occurred at or near the Bottleneck.