'(<a href="http://www.j-archive.com/media/2006-06-13_DJ_12.jpg" target="_blank">Jon of the Clue Crew shows some horsts on the monitor.</a>)  The geological feature called a horst is bounded by these, which Californians know all about'
faults
GEOLOGY: The geological feature called a horst is bounded by these, which Californians know all about
The geological feature called a horst is bounded by these, which Californians know all about
The geological feature called a horst is bounded by these, which Californians know all about
GEOLOGY
faults
GEOLOGY