Megalithic tomb - court tomb, Killin (Bonnyglen Ed), Co. Donegal
On the lower slopes of Killin Hill in County Donegal, where rush grass grows thick above the Eany Water River basin, lies what remains of an ancient court tomb known locally as the Giant's Grave.
Megalithic tomb - court tomb, Killin (Bonnyglen Ed), Co. Donegal
The monument now appears as a grass-covered mound, long and oval in shape, stretching about 33 metres north to south and 22 metres across. At its heart stands a single upright stone, measuring less than a metre in each dimension; a lonely sentinel that once formed part of a much grander structure. This weathered orthostat served as the western jamb of a burial chamber, with archaeological surveys from the 1950s revealing socket marks in the ground where additional stones once stood, including sidestones and possibly a backstone that would have formed the chamber’s walls.
The site’s transformation from megalithic monument to its current diminished state is well documented through historical records. When first mapped by the Ordnance Survey between 1847 and 1850, two distinct features were recorded: the Giant’s Grave to the north and Carricknabraher to the south, with the latter curiously described as ruins where friars once officiated. The OS Name Books paint a picture of a site still impressive in the 19th century, with ‘remarkable graves of granite stone’ and ‘rough flags set on their ends’ forming tomb-like structures open to the sky. By 1904, surveyors noted large flagstones forming a square enclosure with a doorway on its southern side, alongside several long stones set into the earth marking out grave spaces roughly five metres by two metres.
Archaeological examination by Ruaidhrí de Valera and Seán Ó Nualláin revealed the true nature of the monument as a court tomb, likely featuring a subsidiary chamber; a sophisticated Neolithic burial structure typical of Ireland’s prehistoric landscape. Their work, combined with local knowledge, helped piece together the original layout before most of the stones were removed or destroyed. A second standing stone that survived until at least the 1950s, positioned seven metres north of the surviving orthostat, had vanished by 1983, whilst traceable holes in the ground indicated where multiple slabs once stood in parallel formation. Though centuries of disturbance and stone robbing have left only fragments of this ancient burial ground, the site continues to offer glimpses into Ireland’s megalithic past, standing just five kilometres from where the Eany Water meets the sea at Inver Bay.





