The person at the center of this case
Michael Frank Prieto
Missing Person · Open
47 years waiting · since 1979
Missing Person: Michael Frank Prieto
Justice for Michael Frank Prieto — the trail went cold in 1979, but the truth hasn't.
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Key leads to think about
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evidence
Lead #1What condition was the overturned canoe in, and could it indicate the cause of the incident?
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location
Lead #2Why was the canoe found at Entrance Island when the expedition was planned for Glacier Bay?
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clue
Lead #3Were all of Michael's personal items recovered, or are some still missing?
Michael Frank Prieto, a 23-year-old, disappeared on August 9, 1979, while preparing for a 20-day kayaking expedition in Glacier Bay, Alaska. His overturned canoe and personal items were discovered on a beach at Entrance Island in Swanson Harbor, suggesting a possible water-related incident. Despite decades of investigation by the Alaska State Troopers, the circumstances of his disappearance remain unclear, and anyone with information about his fate is urged to come forward.
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More leads to consider
Beyond the top three above — each detail below could be the thread that pulls this case open.
⏰
timeline
Lead #4How long between August 9 and August 25 before the canoe was discovered, and who found it?
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Official wording
Source Narrative
NamUs case MP66712. Missing person: Michael Frank Prieto.
Last known contact: 1979-08-09 in Juneau, Juneau, AK. Circumstances: Michael was last heard from on 08/09/1979 prepping for a 20 day excursion in Glacier Bay.
His overturned canoe and personal items were found on the beach at Entrance Island in Swanson Harbor. Demographics: 23 years, Male, White / Caucasian.
Physical description: 5 ft 10 in, 150 lbs, hair: Blond/Strawberry, eyes: Brown. Investigating agency: Alaska State Troopers | LB790004507 | 1979-08-25.
Timeline of Events
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1979-08-09
Last contact before expedition
Michael was last heard from on August 9, 1979, while preparing for a 20-day excursion in Glacier Bay.
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1979-08-25
Canoe and belongings found
Michael's overturned canoe and personal items were discovered on the beach at Entrance Island in Swanson Harbor.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:August 9, 1979
Last Updated:July 24, 2026
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Phone: 9072695511
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Case Information
Incident:August 9, 1979
Last Updated:July 24, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9072695511
You can remain anonymous