Megalithic tomb - portal tomb, Gilbertstown, Co. Donegal

Megalithic tomb – portal tomb, Gilbertstown, Co. Donegal

Tucked away on a level patch of ground 150 metres east of the Oily River lies a partially collapsed portal tomb, one of County Donegal's ancient megalithic monuments.

Megalithic tomb - portal tomb, Gilbertstown, Co. Donegal

The site sits in wet, rush-grown land dotted with rock outcrops, with views restricted by rising ground except towards the north and northwest along the river valley. The Oily River itself flows southwest for just over three kilometres before reaching the sea at McSwyne’s Bay.

This small chamber tomb, which once stretched at least two metres in length, faces southeast toward rising ground and shows signs of disturbance from digging at some point in its long history. Three of its original stones remain standing in their original positions: a sidestone and portal-stone forming the northern side of the chamber, with the sidestone leaning against and overlapping its companion, and a sillstone set perpendicular to the portal-stone’s inner end. The portal-stone rises from half a metre at the front to nearly a metre at the back, though its top appears to have been broken at some stage.



The most striking feature is the massive roofstone, measuring 3.7 metres long and two metres at its widest point, which has slipped from its original position. Its northern edge still rests atop the surviving sidestone, but the southern side has collapsed almost to ground level, where it now rests on two displaced slabs whose original purpose remains unclear. One of these displaced stones sits on the sillstone whilst the other lies beside it to the southeast. Despite its partially ruined state, this tomb offers a tangible connection to Ireland’s Neolithic past, when such monuments served as both burial places and territorial markers for farming communities who first settled this landscape over 5,000 years ago.

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Gilbertstown, Co. Donegal
54.66237673, -8.38815176
54.66237673,-8.38815176
Gilbertstown 
Megalithic Tombs 

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