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.
Proceedings of the Iowa Academy of Science
©1908 Iowa Academy of Science, Inc.
Keyes, Charles R.
"Eolian Origin of Certain Lake Basins of the Mexican Tableland,"
Proceedings of the Iowa Academy of Science, 15(1), 137-141.
Available at: https://scholarworks.uni.edu/pias/vol15/iss1/21