Trenny Lynn Gibson was last seen at approximately 3 pm on October 8, 1976, in Great Smoky Mountains National Park (GSMNP). She was wearing a blue blouse, a pastel blue striped sweater, blue jeans, and blue Adidas shoes. She had on a brown and orange plaid wool jacket, which she had borrowed from Robert Simpson. She has long brown hair, green eyes, is 5’3 and 115 pounds.For more information, please visit Laura Riste's site devoted to Trenny at www.canadiangurl77.com and Laura's FB page for Trenny: ⁠https://www.facebook.com/searching.for.trenny⁠.If you have any information regarding the whereabouts of Trenny Lynn Gibson, please contact the Tennessee Bureau of Investigation at 615-744-4000.These episodes originally aired as part of the Missing podcast: https://linktr.ee/MissingCSM.