Abstract

Introduction

Observations made during five summers and parts of two winters, or a total period of sixteen months, in the Alexander Archipelago and Prince William Sound and elsewhere on the coast of Alaska between Ketchikan and Nome convinced the writer that certain widespread and general glacial phenomena in this region appear not to confirm some current views held as to glacial erosion. Although the voluminous reports published in recent years on the glacial geology of Alaska testify to the occurrence of some of the phenomena, they overlook others, and they fail to embody what seem to be plain implications as to the locus and the limitations of glacial erosion.

Features of Erosion of Glacial Valleys

Nothwithstanding its magnificent ice-caps and piedmont glaciers, the Alaskan coast is distinguished preeminently by its alpine or valley glaciers, noble rivers of ice, some of which still connect an upper with a lower mer de . . .

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