Michael Frank Prieto was 23 when he left the Juneau, Alaska, area on August 9, 1979, for a planned solo, 20-day excursion into Glacier Bay. Known as Mike, he was five feet ten inches with blond hair and prepared for Alaskan backcountry travel. That day was the last time anyone heard from him.

He was reported missing to the Alaska State Troopers on August 25, 1979. Searchers later found his canoe overturned on the beach at Entrance Island in Swanson Harbor, along with some of his personal belongings. Those items suggest a sudden, unexpected event but do not explain how the canoe overturned or what happened to Michael.

The case remains open with the Alaska State Troopers and Michael has not been recovered. Does anyone who visited Glacier Bay or Swanson Harbor in August 1979 recall seeing Michael, his canoe, or anything unusual along that shoreline?