National Geographic : 1953 Oct
480 A Frozen River Grinds Down to the Polar Sea from Greenland's Eternal Icecap Four-fifths of Greenland's surface lies beneath a sea of ice. At places the cap of solid ice measures more than 8,000 feet inthickness. Here along the coast ofPeary Land it tapers to a mere frosting on the exposed rocks. Wind-blown ice crystals blurred the horizon asMr. McKnew took the picture.