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Document Type

Research

Abstract

The arid region of western United States and northern Mexico is a vast expanse of plain out of which abruptly rise a multitude of lofty mountains. The landscape has been aptly likened to a sea bedecked with volcanic isles. Of the entire area the desert-plains occupy about four-fifths; the mountains one-fifth. Between the different mountain ranges the plains-surface is usually slightly inclined towards the middle. These intermont plains are commonly designated as valleys.

Publication Date

1908

Journal Title

Proceedings of the Iowa Academy of Science

Volume

15

Issue

1

First Page

137

Last Page

141

Copyright

©1908 Iowa Academy of Science, Inc.

Language

en

File Format

application/pdf

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