Cochise College         

                          Virtual Geology Field Trips

                          Roger Weller, geology instructor   

                          wellerr@cochise.edu
                         Geology Home Page
                                  copyright 2005-R.Weller

California
Devils Post Pile Photos  
last edited:  8/18/2005    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.