The National Park Service has released a description of a man thought to have bound a woman to a tree along the Blue Ridge Parkway.

Local media outlets report a woman was found Thursday near the popular Craggy Gardens area about 40 miles northeast of Asheville.

A woman who called 911 identified herself as a caregiver for the 64-year-old woman found bound. The caller said she was receiving texts from the woman who authorities found and took to a hospital.

Park officials think it was an isolated incident and visitor facilities in the area remain open.

A Park Service release describes the suspect as a white man about 50, with graying hair and a partial beard. He was wearing a gray T-shirt, baggy blue pants and dark tennis shoes.