Authorities are doing aerial searches around Signal Mountain, searching for 43-year-old Gail Palmgren, who disappeared in April.
The Hamilton County Sheriff's Office is coordinating the searches, which started Wednesday and continue today, officials said.
Hamilton County Sheriff Jim Hammond said the case remains active.
"It is still a very much active case," he said. "We are followiing up on some leads."
In a previous interview a few months ago, Hammond said aerial searches of the area probably would begin once the leaves fell off the trees.
Palmgren, a mother of two children, was last seen on April 30, dropping her children off at her home at 40 Ridgerock Drive on Signal Mountain.
Sheriff's office investigators have said there is no evidence of foul play in Palmgren's disappearance.
Matthew Palmgren, Palmgren's husband, consented to searches of the couple's Signal Mountain home, their Alabama lake house, his mother's apartment and a Red Bank storage unit, but he has not given a statement to authorities.
For complete details, see tomorrow's Times Free Press.