KEY FACTS
- Vessel: USS Cyclops (AC-4), a U.S. Navy collier
- Last confirmed departure: Barbados, 4 March 1918
- Intended destination: Baltimore, Maryland
- Cargo: manganese ore
- Outcome: the ship did not arrive; its final position remains unknown
A Ship That Failed to Arrive
On 4 March 1918, USS Cyclops steamed out of Barbados and turned north towards Baltimore. She was one of the largest ships in the United States Navy: a 542-foot steel collier carrying hundreds of people and a hold filled with dense manganese ore.
Nothing about her departure announced what followed. There was no final scene witnessed from shore, only an expected arrival that never happened. As the days passed, wireless calls went unanswered. Search vessels found nothing they could identify as hers.
The disappearance would later be drawn into the mythology of the Bermuda Triangle, but that label came decades afterwards. The original mystery is starker: somewhere between a known harbour and the American coast, an enormous naval vessel passed beyond the reach of every witness and every surviving record.
Related Reports
See also The Flannan Isles Lighthouse Mystery and the Archive’s other Unexplained Events.
THE INVESTIGATION CONTINUES
What happened to USS Cyclops after she left Barbados?
The disappearance is only the beginning. Inside the full dossier, the evidence gradually exposes a damaged engine, a difficult commander, troubling reports from Barbados and a pattern involving two of the ship’s closest relatives. Each clue appears to narrow the mystery—until the missing wreck removes the possibility of a final answer.
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