Arizona-San Bernardino Volcanic Field
                               Geology Exploration Using Google Earth
Cochise College                                                                                        
Geology Home Page 
Geology of Bisbee and Cochise County 
Volcanoes and Igneous Rocks
Geology Exploration Using Google Earth
Roger Weller, geology instructor 
last edited:  4/3/18            19  views

Cochise County sits in the Southeast corner of Arizona adjacent to New Mexico
and Sonora, Mexico.  The San Bernardino Valley with its volcanic field is located in
the southeast corner of Cochise County.  The San Bernardino volcanic field actually
extends a short distance into Mexico.  Within the volcanic field there are dozens
of eroded cinder cones, two maars, and obvious lava flows.  Due to the rapid
manner in which basalt chemically weathers in this semi-humid environment there
is plenty of rust-colored volcanic rocks.  The youngest of the volcanoes is about
300,000 years old.  Some of the oldest features in the volcanic field date back
about 5 million years.

 latitude:  31.495     longitude:  -109.205
 photo credits:  Google Earth, Digital Globe, INEGI

Photo Collections
 Overview of the volcanic field  (5 views)
     Cinder Cones  (5 views)
     Maars  (4 views)
     Lava Flows  (2 views)
     Cinder Mining  (2 views)

Additional Online Sources of Information    
         The Adventure to the San Bernardino Valley, Cochise County, Arizona by Mollie Hobbs
         Geology of Southeast Arizona- The San Bernardino Volcanic Field by Roger Weller