You can find this spot on Google maps listed as a museum under "Apache Trail Corral" or "Old Corral," not sure why! 

Very weak, almost unusable verizon or AT&T at site itself, but if you walk up the hill behind the corral you get excellent service. 

Motorcycles and cars racing up and down the road almost all night, very loud. Good for an overnight but too close to the busy road and too loud to stay longer.  

If you go down the other side of the corral there are a couple more spots that are a little more secluded, but you’ll need a high clearance vehicle to navigate the ruts.