California   - Catalina Island            
Cochise College                                                   

Geology Home Page
Virtual Geology Field Trips  

Roger Weller, geology instructor   

wellerr@cochise.edu   copyright 2015-R.Weller

last edited:  6/18/15    number of photos: 32



  
  
Catalina Island is located 22 miles west of Los Angeles. 
The island is 22 miles long and 8 miles at its widest point. 
Most of the population lives in Avalon, a beautiful small port. 
Its tallest mountain is Mt. Orizba at 2097 feet.  The island is
almost completely surrounded by steep sea cliffs.
 

     Catalina Island was created by the uplift of the Farallon plate.                                        
The oldest rock is the Catalina schist at 150 million years.  On top of this
material is some light colored Tertiary volcanics, followed by dark volcanic
materials.  The youngest materials are sandstones and some diatomaceous
earth.


photos
Avalon:  1  2  3
beach:  1  2
breccia:  1
conglomerate:  1  2  3  4
crushed rock:  1  2  3  4
debris flow:  1
folds:  1
landslides:  1  2  3 
mist:  1                                                                                                                
quartz vein:  1                                                                                   
roots:  1
rock falls:  1  2
scarps:  1  2  3
sea cliffs:  1  2  3
vein-filled rock:  1
white rock:  1
 

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