Thelma “Polly” Melton, 58, disappeared on September 25, 1981, while hiking the Deep Creek Trail in North Carolina with friends Trula Gudger and Pauline "Red" Cannon. Born February 26, 1923, in Alabama, Polly was known for her friendly and intelligent demeanor and had lived with her husband,...

David Glenn Lewis, a 39-year-old attorney from Amarillo, Texas, vanished under mysterious circumstances during Super Bowl weekend in 1993. His wife and daughter returned home on January 31 to find him missing, with two sandwiches in the fridge, the VCR recording the game, and his personal...

On July 18, 2007, 55-year-old Barbara Bolick vanished without a trace while hiking her favorite trail, Bear Creek Overlook, in Montana. She was accompanied by Jim Ramaker, a guest, who claimed she disappeared silently within 40 seconds while walking ahead of him. Despite extensive searches with...