All carry only two or three skiers a chair, and most open onto knife-edged ridges that cannot accommodate many people.

He had to scramble fast to reach a long knife-edged ridge.

Except Kiloliana, who knew back-trails up the precipitous walls, no man could win to the gorge save by advancing across a knife-edged ridge.

The mountain is notorious for its steep pitches and knife-edged ridges that are completely open to the elements.

This route was described by an early climber as "a knife-edged ridge, with an overhanging and infinite drop on one side, and a drop on the other side even steeper and longer".

It rocketed forward, accelerating madly as it streaked away, using a knife-edged ridge of rock for cover against Isvarian's stunned perimeter force.

He led his section up a very steep knife-edged ridge under very heavy machine-gun and rifle fire and although wounded in the thigh, captured the first trench.

Spaced at intervals from five miles to half a mile, these mountains with their knife-edged ridges of brittle igneous rock rivaled the Alps in size.

All three were relatively inexperienced climbers and Lhatoo later speculated on the exposure on the knife-edged ridge leading to the summit slope as a possible incident site.

Anyone trying to get up through the jagged mountains there would find themselves in a world of gorges, knife-edged ridges, permanent ice and even more permanent death.