File 129 · 23 January 1974
Berwyn Mountain, Wales
Berwyn mountains, Wales, United Kingdom
Opened 9/4/2026
Ledger illustration of the file — not a photograph of the object. Ledger illustration of the report. Welsh mountain night. — Night Ledger illustration of the file
Standing
Unidentified
On the public record, and still open. A claim, paper, or film — not a finding that it was ours, and not a finding that it was not.
What was claimed
A tremor, a flash, and lights on the mountain brought police and later claims of a crashed craft. The BGS recorded an earthquake.
What is on the record
This file is a working record — a report, not a verdict. Official paper, if any, is linked where we have it.
Just after 8:30 p.m., people across north Wales heard a roar and felt a shake. Lights were seen on Cader Berwyn. Police and a nurse, Pat Evans, went up and described a large glowing mass. Newspapers ran crash rumors. The British Geological Survey recorded a magnitude-3.5 earthquake at the same minute.
Poachers’ lamps, a meteor, and the quake can be stacked into a mundane night. Others never accepted that the nurse’s object was a lamp. The file is a mountain, a seismograph, and a disagreement that has lasted fifty years.
Could this have been ours?
The known sky, that night.
Satellites were already up. The station was not. Starlink was not.
Always
Aircraft, balloons, meteors
Landing lights, flares, lanterns, reentries, fireballs. They are on the known sky. They do not close a file by themselves — they are what a serious look has to hold the claim against.
The known sky
None of the above land
Stations, trains, and planets do not set down in a field or leave a body. This file is a ground report. The known sky still has to be named. It does not answer the claim.
Orbit · Space — the desks for lights that are already named.
Sources
Related files
Same craft, same place, same years. A neighbor in the catalogue — not a conclusion.
Same craft · 29 January 1986
Height 611, Dalnegorsk
Dalnegorsk, Primorsky Krai · Russia
Unidentified
A glowing object was seen to strike a hill known as Height 611. Residents recovered slag-like metal and mesh. Soviet investigators collected samples.
Same craft · 9 December 1965
Kecksburg acorn
Kecksburg, Pennsylvania · United States
Unidentified
A fireball seen over several states was said to have fallen into the woods. Villagers described an acorn-shaped object and a military cordon.
Same craft · September 1957
Ubatuba magnesium fragments
Ubatuba, São Paulo · Brazil
Unidentified
A disk was said to explode over the sea off Ubatuba. Fragments recovered from the beach were unusually pure magnesium.
Same craft · July 1947
Roswell debris, New Mexico
Roswell, New Mexico · United States
Unidentified
The Roswell Army Air Field announced it had recovered a “flying disc,” then retracted the story the next day. The newspaper of record still exists.
Same craft · 17 April 1897
Aurora, Texas airship crash
Aurora, Texas · United States
Unidentified
A small-town newspaper reported that an airship struck a windmill and that a non-human pilot was buried in the local cemetery.