The DeKalb County Sheriff's Mounted Unit joined forces with the Tennessee Bureau of Investigation for the search of 20-year-old Holly Bobo.
Bobo has been missing from Lexington, Tennessee since April of 2011.
The mounted unit including Sgt. Jonathan Langley, Tony Blackwell, Chris Black, Brian Darwin, Beth Emory, Casey Langley, Nick Wheller, Brandon Blackwood and Jason Wilkie arrived at Natchez Trace National Forest on Friday.
They searched for three days in wooded and roadside areas. Many of the areas they searched were impassable by anything other than a horse.
The unit searched using spiral and grid technologies and was able to find several significant articles of evidence. They tagged the areas searched with their GPS system and turned it over to the TBI.