Last weekend, I had a fun drive through a few truck trails I've been wanting to do for awhile.
Located in the Cleveland National Forest in Campo, CA only about an hour east of San Diego, La Posta Truck Trail connects to Thing Valley Road and then to Fred Canyon.
I've posted my track, plus the trail review and pictures to my profile on Alltrails.com. Here's the link:
Not too challenging, but it's a short fun drive with some pretty great views that you shouldn't pass up if you have a couple of hours to kill.