Account
Jan 27, 2026
Jan 27, 2026
Senia
Marie Mattson
53
53
5'4 inches
140 lbs
White
Female
In the pre-dawn hours of July 3, 1983, 58-year-old Senia Marie Mattson was with family and friends at a cabin in Trout Lake Township, Michigan. The cabin was situated on the western shore of Carp Lake, also known as Trout Lake, a setting that would soon become the focal point of a lasting mystery. Reports indicate that after consuming a significant amount of alcohol, Senia left the cabin around 4 a.m. and walked into the surrounding woods. She has not been seen or heard from since that early morning. The gathering was meant to be a time of connection, but it tragically marked the last time anyone would see Senia. At the time she vanished, Senia was described as a white female with brown hair and green eyes, standing 5 feet 4 inches tall and weighing approximately 140 pounds. She wore prescription eyeglasses. Her clothing consisted of blue jeans, a light blue sweatshirt, and maroon tennis shoes. She was also wearing a gold wedding band and a gold watch with a gold band. Senia had several distinguishing physical features, including scars on both breasts from mastectomies and a scar on her left upper arm from a tattoo removal. Authorities were also informed that she suffered from periodic memory lapses, a detail that added another layer of concern to her abrupt disappearance. In the wake of her disappearance, extensive air and ground searches were launched in the dense woods surrounding Carp Lake, but they yielded no trace of Senia. Investigators have been left with few clues, considering possibilities that she may have become lost in the wilderness or perhaps accepted a ride from someone. Despite the passage of decades, the efforts of the Michigan State Police have not brought a resolution to her case. This lack of answers has left her family and community in a state of prolonged uncertainty. The case of Senia Marie Mattson is an enduring mystery, a story of a woman who stepped into the woods one summer morning and seemingly vanished without a trace, leaving behind only questions and the quiet hope for discovery. Her case remains open and is listed in national missing persons databases.
Jul 03, 1983
Trout Lake Township
Michigan
Trout Lake Township
Michigan State Police
906-643-7582
05/11/2026
