joeyp: Wow, how did you find that?! Yes, that's the spot!
I learned about some new places from some of the guesses here. Thanks!
These photos were taken at the <a href="http://www.cacities.org/index.jsp?zone=wcm&previewStory=23145">Incredible Edible Park</a> located near the corner of Harvard and Deerfield. You can ride your bike on the bike path that runs parallel to the train tracks there.
<img src="http://i32.tinypic.com/21nqmn4.jpg" alt="" />
Here are some links that I found about the park:
<a href="http://www.feedoc.org/cpg/thumbnails.php?album=3">http://www.feedoc.org/cpg/thumbnails.php?album=3</a>
<a href="http://oc.metblogs.com/2009/02/24/incredible-edible-park/">http://oc.metblogs.com/2009/02/24/incredible-edible-park/</a>
<a href="http://blog.redfin.com/orangecounty/2008/08/lend_a_hand_at_the_incredible_edible_park.html">http://blog.redfin.com/orangecounty/2008/08/lend_a_hand_at_the_incredible_edible_park.html</a>
<a href="http://en.epochtimes.com/news/5-1-23/25959.html">http://en.epochtimes.com/news/5-1-23/25959.html</a>