National Geographic : 1934 Aug
Photograph by Miriam O'Brien Underhill CLIMBERS HURRY A LITTLE BENEATH A HANGING GLACIER Before the ascent of the Grepon (partly hidden by clouds in the left background) begins, there are several hours oflaborious walking up the Glacier des Nantillons, the stream of ice and rock flowing down this valley. Parties usually pause for breakfast on top of the rocky promontoryinthe center. From here they pass the base of dark cliffs, over which hangs a jagged glacier (upper center). Masses of ice break off from time to time and are considered dangerous toclimbers (see pages 141and 145).