1. Education

San Andreas Fault in the Indio Hills

Southern San Andreas Fault

By

The Indio Hills (left) rise due to pressure between the north and south strands of the San Andreas fault. Palm trees signify shallow groundwater here.
Pressure-ridge range
Photo (c) Andrew Alden, licensed to About.com (fair use policy)
Top Related Searches

©2014 About.com. All rights reserved.