 
 
K2 Bottleneck: Why It’s the Deadliest Section, Deaths & Survival Strategies
What Is the K2 Bottleneck? The K2 Bottleneck is a narrow, steep couloir on the South-East Spur of K2. It sits roughly 400 meters below the summit, at an altitude between 8,200 m and 8,400 m.For a full understanding of the mountain’s scale, see our guide