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Home › Declassified › Sonar Anomalies › The Puerto Rico Trench Acoustic Mystery

The Puerto Rico Trench Acoustic Mystery

Key related concepts

The Phantom Submarine Sonar Track
The Quasi Steady 32 Hertz Mystery

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Archive file

Archive Code: 0065
Category: Sonar Anomalies
Section: Declassified

Related

The Phantom Submarine Sonar Track
The Quasi Steady 32 Hertz Mystery

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