The reason for the teaser and the lack of footage the past two weeks, of course, is because the footage release is being saved for a NatGeo documentary.

Earlier this month, skier and mountaineer Jim Morrison became the first person to ski down Mt. Everest's foreboding Hornbein Couloir.

Jim Morrison, a 50-year-old American skier and mountaineer, made history this week by becoming the first person to ever ...

The Hornbein Couloir on the north face of Mount Everest is known as the world's most challenging ski descent. On Oct. 15, Jim ...