Gardai are being urged to allow the excavation of a site which earth scanning experts claim could contain the ‘grave’ of missing Mary Boyle.
A geo-physical survey of a site near Cashelard in Ballyshannon indicates a significant underground disturbance.
The area is the exact spot which was first flagged by witnesses 36 years ago in 1977 when the six year old girl went missing.
However, no action was taken at the time.
Now a scanning company, Scantech, said there is a possibility the earth was disturbed.
Scantech CEO Tom Davitt said there are certainly questions which need to be answered and that the area should be cordoned off.
He said whatever action which was not taken by Gardai decades ago could now be taken.
Missing Mary’s twin sister Ann also called on the site to be cordoned off and examined thoroughly.
She described the finding as a ‘key clue’ and called for the Gardai to carry out further investigations.