I think that the Carrizo Plain National Monument is sort of on the way (it's near Bakersfield), depending on what route you take. I've never been there, but I hear it's pretty spectacular this time of year. There are some unpaved roads you can wander around on.
http://www.blm.gov/ca/st/en/fo/bakersfield/Programs/carrizo.htmlI think someone from here was out there not too long ago, maybe they'll respond.