Abstract

Introduction

The reviewing and abstracting of the chapters of the final report of the Geological Survey of Minnesota, so far as they treat of the areal geology of the state, have brought vividly to mind some of the general physical features which have not been grouped nor discussed in their ensemble in any of the chapters of that report. Among these data, which are scattered through the volumes of that report, none stand out more boldly than those pertaining to the drift. After the moraines the glacial lakes are perhaps the most remarkable and most interesting phenomena among the drift features.

In the course of the geological survey most of these lakes have been referred to—at least in respect to some of their features—and some of them have been carefully examined and described. Most of them, however, have not been mapped nor named. The attempt is here made to bring . . .

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