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Geological Survey Bulletin 1493
The Geologic Story of the Great Plains |
THE GEOLOGIC STORY OF THE GREAT PLAINS
By
Donald E. Trimble
A nontechnical description of the origin and evolution of the landscape of the Great Plains
Reprint with minor revisions of
GEOLOGICAL SURVEY BULLETIN 1493
Reprint with minor revisions of
GEOLOGICAL SURVEY BULLETIN 1493
1980
United States Geological Survey
Reprinted 1990
Theodore Roosevelt Nature and History Association
bul/1493/index.htm
Last Updated: 28-Dec-2006