This was my first go at dispersed camping in my new travel trailer.  Google Maps took me to the right location off of 285 and the dirt roads were manageable. I would recommend 4x4 or AWD vehicles but they're nothing too crazy.  Lots of good and large camping spots and I'd recommend a location on the left side of the road.  

Sites didn't seem to be makred, and I stopped a bit short of what the coordinates that are listed.