Trenny Gibson was a 16 year old who went missing from a school field trip in 1976 in the famous Smokey Mountain Nation Park. She was last seen walking on the Forney Creek Trail heading back to the Clingman’s Dome parking area. To date there has been no sightings of her. https://www.wvlt.tv/2026/04/24/mystery-mountains-nearly-50-years-later-trenny-gibsons-disappearance-remains-unsolved/