Dr. D. Ross Campbell was out in the Stone Door Park region of Grundy County.
According to the Stone Door Ranger’s Office, a search began after no one had heard from him for over 12 hours.
The Grundy County Sheriff’s office and the Tennessee Highway Patrol were among the agencies helping look for Doctor Campbell.
There’s no word yet on his whereabouts.
Dr. Campbell is known for his books such as “How to Really Love Your Children,” and for his work at the U-T College of Medicine.
He is also the director of the Southeastern Counseling Center in Chattanooga.