Black Rock Mt State Park https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=&cad=rja&uact=8&ved=0ahUKEwij67y6gOPRAhWEllQKHf78C7kQFggdMAA&url=http://gastateparks.org/BlackRockMountain&usg=AFQjCNFpeTyAQBbm0xG1jpANCCXNtoQkOA&sig2=x7Ct0CEToynESW8duxtNIw
primitive camping on the north side of Cooper creek is deserted most of the time (closer to Blairsville) also Sandy Bottoms is nice. Warwoman is my favorite more rugged.
Sorry to hear that about your knee.I was hoping you were healed up and ready for a ride.Do what the PT says and maybe your knee will straighten out. I will be praying for your recovery.