There is no single designated campsite area but there are multiple spots along this road.

If you are looking at online maps it looks like there are lots of little roads you can go off and find a spot. You cannot. All side roads are locked as there is a quarry there. If you continue down this Red Quarry Rd you will see multiple little campsites right off the road you can park or camp at. They each had a fire pit and that was it. Beautiful area. If you don't see any just keep going I promise you will find at least 3 in the first mile or so. 

Does have Verizon service. Road is bumpy but manageable. Wouldn't bring an RV though.