Hard to answer, I just checked on a couple of OHV areas north of Mojave, Dove Springs, California City, the BLM OWNS THE WEST! One thing, around here another BLM Field Office rules, Ridgecrest, they might be friendlier. Red Rock Canyon State Park, just south of Dove Springs, possibly, but it has a small campground and I've heard it isn't favorable for large RV's. I'll scout it this weekend. Sean is familiar with all of these areas, too.
"You have enemies? Good. That means you've stood up for something, sometime in your life." Winston Churchill