The person at the center of this case
Michael Frank Prieto
Missing Person · Open
46 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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timeline
Lead #2What was the exact timeline between August 9 and August 25 when the canoe was discovered?
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location
Lead #3Why were the canoe and belongings found at Entrance Island rather than along the planned Glacier Bay route?
Michael Frank Prieto, a 23-year-old male, disappeared on August 9, 1979, while preparing for a 20-day kayaking expedition in Glacier Bay, Alaska. His overturned canoe and personal belongings were discovered on Entrance Island in Swanson Harbor, suggesting a possible water-related incident. The case remains unsolved, and investigators continue to seek information about the circumstances surrounding his disappearance.
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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.
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witness
Lead #4Were there any witnesses to Michael's departure or any sightings in the area during this period?
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Even the smallest detail could be the key to solving this case.
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:June 24, 2026
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Phone: 9072695511
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Case Information
Incident:August 9, 1979
Last Updated:June 24, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9072695511
You can remain anonymous