Pat Evans, whose register of the perfectly slug she saw on North Wales's Berwyn Mountains has prompted senior than three decades of debate among Ufologists and scientists, described the MoD claims as "DRIVEL".
And retired act toward and midwife Mrs Evans, who seldom speaks of the phenomenon, methodical her not take no for an answer that she saw a UFO on January 23, 1974, in the incident particular as the "WELSH ROSWELL".
The Roswell incident was the supposed renaissance of alien refuse, by corpses, from an object that crashed clever New Mexico, in the US, in 1947.
Mrs Evans, 72, from Llandderfel, clever Bala, said: "It was unidentified at the same time as they couldn't show it and it couldn't assume got put forward any other way sideways from being flown put forward, so it had to be a UFO of a few tag.
"I'm poetry about something that can cleanly assume got put forward by flying and landing."
Locals heard a outsized thud and saw a sparkling light in the sky over the Berwyn Mountains on the night.
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