Adam--A lot of local bear hunters, some of them apparently a pretty rough crowd, like to "train" their dogs by turning them out along the road leading from Jonathan Creek over into Cataloochee. There is a training season before the onset of actual bear hunting, and I've seen those guys at multiple pullouts during the training season and after the actual bear season opens. Apparently some of them are a pretty rough lot and rangers just don't want to mess with them.
Incidentally, if you spend much time in the Cataloochee area you are going to hear and likely see dogs. That's where most of them are coming from.