A chunk of rock "the size of an apartment building" fell off the granite face of El Capitan in Yosemite National Park, killing one person and injuring another on the mountain at the height of climbing season, officials and witnesses said.

The inside story of one of the toughest endurance tests there is, the Dawn Wall climb, by Andy Cave

One of them got stuck in one part for a week.

Two climbers trying to accomplish the "Climb of the Century" using only their hands and feet to scale a sheer granite face, are near the top after 17 days.