That looks like Fort Irwin area north and west of Calico.
There are some fun routes and things to see in Calico as well, some good shooting areas out Mule Canyon, and Bismark Mine is fun to crawl through. It's about a half mile long. In one section you have to crawl thru on your elbows, but it comes out the other side. Kinda spooky.
I have not ridden the Ft. Irwin area but George Erl (Uptite) use to go out there all the time, would never tell anyone where it was...super secret!