Robert Christopher Mark, 35, disappeared from a fish camp near Aniak, Alaska, on or around September 1, 1993. A Native American man with black hair and brown eyes, he was about 5 feet 5 inches tall and weighed 150 to 175 pounds; he wore eyeglasses and sometimes had a mustache. The Alaska State Troopers handled the investigation, but the official report was not filed until March 16, 1994.

Very few details about what happened at the fish camp have ever emerged, and the case grew cold. Robert is registered in national missing persons databases as NamUs MP26415 and family DNA from his sister is on file for comparison with any unidentified remains. The disappearance remains open and unsolved, leaving family and community with unanswered questions.

If anyone was at or near the Aniak fish camp in late summer 1993 or has information about Robert’s movements around September 1, 1993, please come forward.