![](http://www.alamy.com/thumbs/6/3C6E7FD0-101A-4263-8A3C-40121861CADD/PHFG3A.jpg)
Image from page 741 of '[Manual of Geology treating of the principles of the science with special reference to American geological history . Revised edition.]' .
Size: 1579px × 1267px
Photo credit: © Abu Castor / Alamy / Afripics
License: Licensed
Model Released: No
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