A while back I put together a post on my website on the Jackrabbit Trail alignment of US 60 through the Badlands west of Beaumont, California. I thought this would be a good place to put a link for other interested parties.
http://socalregion.com/jackrabbit-trail-november-14-2013/
The post covers a bit of the history, routing, and has photos of the roadway. I took a small portion of this again a couple weeks ago and it hasn't changed much, despite the heavy rains we have been having. It is still marked as "Road Closed" and isn't signed from Gilman Springs Road anymore, but it is indeed a through road.