THE UAP MAP
Mass · 1974

Berwyn Mountain Incident
Documented report. Unresolved object.

On the evening of January 23, 1974, residents of the Berwyn Mountains area in northern Wales reported a loud noise and a bright light in the sky.

1974Llandrillo, Denbighshire, WalesEvidence-led case fileMass
Welsh mountains
CATEGORY CONTEXT, NOT INCIDENT PHOTOGRAPH. Berwyn mountains, Wales, used as location context only.
01 / why this case matters

Why This Case Matters

This case matters because it is a documented mass event whose object identity remains unresolved.

02 / the case

What is documented.

Documented

On the evening of January 23, 1974, residents of the Berwyn Mountains area in northern Wales reported a loud noise and a bright light in the sky.

03 / what is debated

What remains contested.

Debated

The identity of the object

Debated

The adequacy of the conventional explanation

04 / what remains unverified

Beyond the record.

Unverified

Extraterrestrial origin

Unverified

Any claim stronger than the record supports

Unverified

That a crash or retrieval ("Welsh Roswell") occurred

05 / what the record establishes

Keep the layers apart.

Record element
What it supports
What it does not settle
Witness report
A documented report exists.
The objective identity of the object.
Official investigation
That the case was investigated where documented.
That an extraordinary cause was proven.
Conventional reading
That a conventional explanation exists where documented.
That the conventional explanation closes the case.
06 / source room

Follow the paperwork.
Keep the claims apart.

Sources are kept in separate layers: official and contemporary material is documented; secondary UFO literature is treated as debated, not as primary evidence.

secondaryWikipedia: Berwyn Mountain UFO incident

Secondary / debated material.

governmentUK National Archives

Documented source.

contemporaryBBC Wales

Documented source.