Photo of the Day

"Chilled by creeping darkness, [a] team slogs home from [peaks called] Baldy, far left, and Butterfly Beach, the dark ridge at right. A rope binds them for safety. 'We can see big holes,' says [biologist David] Hik. 'We can't steer clear of snow-covered cracks.' A thousand yards [914 meters] ahead lie camp, dry clothes, and the end of a 16-hour workday.'

—From "Nunataks," December 1998, National Geographic magazine