Winter Protalus Mounds: Brooks Range, Alaska^∗

∗ Publication authorized by the Director, U.S. Geological Survey.

Abstract

Isolated piles of unsorted rock deposited on a gently sloping valley floor and away from the steep side slopes are interpreted as having an origin similar to that of winter talus ridges. They were probably transported along chutes developed in a snow or ice cover and deposited in depressions, holes, or at the margin of the snow or ice.