Case file · 1974 · Unexplained Encounters
The Berwyn Mountains
The Night the Hills Shook
A bang, a shaking ground and lights over the Welsh hills: the 'Welsh Roswell'.
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This 7 min episode was written from the public record. These are the sources behind it.
- The National Archives (UK): AIR 2/19083: UFO reports (1974 MoD file, includes the Berwyn Mountains incident)
- The National Archives (UK): Digital copy of DEFE 24/2045: UFO correspondence; with redactions (MoD correspondence with further Berwyn details, released 2010)
- WalesOnline: Released files cast light on famous Welsh 'UFO' sighting (MoD files, earthquake and meteor)
- North Wales Live (Daily Post): New light shed on UFO mystery (local reporting)
- Wikipedia: Berwyn Mountain UFO incident (overview)
Where a case is unresolved, the episode sets out what is known and what is disputed, and names no one as responsible beyond the official and court record. Corrections: support@realtimecomms.co.uk
