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Document Type

Research

Abstract

Botanically and geologically, one of the most interesting areas in the Upper Middle West is the "Driftless Area." Covering 15,000 square miles of southwestern Wisconsin and adjacent Illinois, Iowa and Minnesota, this area is about twice the size of the state of New Jersey. With the exception of certain marginal areas such as northeastern Iowa, the "Driftless Area" was apparently not covered by a continental glacier during the periodic glaciation of the Pleistocene epoch. These marginal areas are believed to have been glaciated during the earliest of these periods, the Nebraskan, and most of that resulting drift has been lost through weathering and erosion.

Publication Date

1957

Journal Title

Proceedings of the Iowa Academy of Science

Volume

64

Issue

1

First Page

199

Last Page

204

Copyright

© Copyright 1957 by the Iowa Academy of Science, Inc.

Language

EN

File Format

application/pdf

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