Skull Rock, Mt Allen, <a href="//commons.wikimedia.org/wiki/Category:Santa_Monica_Mountains" title="Category:Santa Monica Mountains">Santa Monica Mountains</a>, California, USA.<br>Another shot of Skull Rock?
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/76027268@N00">IvyMike</a>
CC BY 2.0
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