The person at the center of this case
Eberhard Prange
Missing Person · Open
35 years waiting · since 1991
Missing Person: Eberhard Prange
Justice for Eberhard Prange — the trail went cold in 1991, but the truth hasn't.
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Key leads to think about
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location
Lead #1What specific trail into the Grand Canyon did they plan to take, and was it ever confirmed they entered the canyon?
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witness
Lead #2Were there any witnesses who saw the couple at Grand Canyon Village or on any hiking trails after May 2, 1991?
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clue
Lead #3Why did the couple plan to 'not leave' the canyon according to Eberhard's letter, and what did this statement mean?
Eberhard Prange, a 32-year-old German national, disappeared in May 1991 shortly after arriving in the United States and marrying his wife Sibylle in Las Vegas. The couple was last seen in Grand Canyon Village, Arizona on May 2, 1991, where they had withdrawn money from a bank and reportedly planned to hike into the Grand Canyon. Despite decades of investigation, the circumstances of their disappearance remain unclear, and authorities continue to seek information about what happened to them in or near the canyon.
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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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person
Lead #4What is the status and whereabouts of Sibylle Prange, Eberhard's wife who disappeared with him?
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Even the smallest detail could be the key to solving this case.
Official wording
Source Narrative
NamUs case MP160129. Missing person: Eberhard Prange.
Last known contact: 1991-05-02 in Grand Canyon Village, Coconino, AZ. Circumstances: Eberhard and his wife, Sibylle (MP160303) arrived in the US from Germany on 4/15/1991, flying to Las Vegas via New York.
According to a letter written to his parents, they spent a few days in New York, then flew on to Las Vegas and were married there on 4/25/1991. On 5/4/1991, they utilized the Valley National Bank at Grand Canyon to send money back to Germany.
He last sent a letter written to his parents indicated that they planned to go into the canyon on a trail and not leave. Demographics: 32 years, Male, White / Caucasian.
Physical description: 5 ft 9 in, 150 lbs, hair: Brown, eyes: Hazel. Investigating agency: Coconino County Sheriff's Office | S22-00277 | 1991-09-17.
Timeline of Events
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1991-04-15
Arrival in United States
Eberhard and Sibylle Prange arrived in the US from Germany, flying to Las Vegas via New York
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1991-04-25
Marriage in Las Vegas
Eberhard and Sibylle were married in Las Vegas
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1991-05-02
Last known contact
Last seen at Valley National Bank at Grand Canyon Village where they withdrew money to send back to Germany. Couple indicated plans to hike into the canyon on a trail.
Key Locations
Interactive map showing important locations related to this case
Case Information
Incident:April 15, 1991
Last Updated:July 10, 2026
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Phone: 9287744523
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Case Information
Incident:April 15, 1991
Last Updated:July 10, 2026
Have Information?
Any information, no matter how small, could be crucial to solving this case.
Phone: 9287744523
You can remain anonymous