The area is being considered a crime scene by investigators. Investigators took scene photos as they made their way down to the crash site.
Sheriff's Office Spokeswoman Janice Atkinson says the W Road will be closed from Mountain Creek Road to the top of East Brow Road until further notice. Residents on the W Road will be asked for identification before being allowed to continue home.
Palmgren was last seen leaving her home on Signal Mountain on April 30th following a dispute with her husband. She has not been seen or heard from since.
Sheriff Hammond says the search will resume Friday morning.