California  -  Devils  Post Pile
Cochise College                                       

Geology Home Page
Virtual Geology Field Trips  

Roger Weller, geology instructor  copyright 2017-R.Weller

last edited:  10/2/17    number of photos:  10 

columnar jointing
vertical columns:  1  2
pile of broken columns:  1  2  3  4
broken column leaning against tree

columns are porphyritic basalt

evidence of creep
hockey stick trees:  A  B


Photos are copyright free for non-commercial educational uses. 
Just credit photos to R.Weller/Cochise College.