About 20 minutes outside Flagstaff, past the "luxury resort" gated communities, up the mountain, is a well-maintained though narrow hard gravel road with many dispersed campsites right off of it.   Many of the sites are suitable for even large rigs, with space to turn around. 

Earlier reviews complained about the dust.  There is dust, lots of it, right off the road in the turnoffs.  But we found it quite simple to drive in a little further where the ground is a carpet of pine needles, soft, fragrant, and no dust at all.

We are here in late October three days before the temperature is scheduled to plummet and the place will be covered in snow, but it's in the 70s now. 

Very usable two bars of Verizon, one bar AT&T.  This probably varies depending where you set up. 

The only downside to the place are the gunshots in the distance.  Lots of shots, so probably not hunters, or else really bad ones.  Not sure if that's a common occurrence.