I first read about Eiger in Jon Krakauer’s book, Eiger Dreams: Ventures Among Men and Mountains in which he writes,
The problem with climbing the North Face of the Eiger is that in addition to getting up 6,000 vertical feet of crumbling limestone and black ice, one must climb over some formidable mythology. The trickiest moves on any climb are the mental ones, the psychological gymnastics that keep terror in check, and the Eiger’s grim aura is intimidating enough to rattle anyone’s poise.
With that in mind, take a look at the video below which shows Ueli Steck, a swiss climber, running up Eiger in two hours and forty-seven minutes!
– via kottke.org