First recorded on the 1847-9 Ordnance Survey map, this ancient monument sat about 1.3 kilometres east-southeast of a destroyed court tomb in Ballintemple. Local tradition knew it as ‘Dermot and Grania’s Bed’, linking it to the famous lovers of Irish mythology.

When Thomas Fagan visited the site in 1845, he found what appeared to be the substantial remains of a tomb measuring roughly 9 metres by 4.6 metres. The most striking feature was a massive stone slab at the northern end; about 1.7 metres long and 1.5 metres broad, it rested at an angle with its southern edge raised about 60 centimetres off the ground, supported by two upright pillars. Nearly 4 metres to the south lay another large stone, positioned at right angles to the monument’s long axis, which Fagan believed had once divided the structure into two chambers. A subsequent Ordnance Survey account from 1847-9 described additional stones, including a wedge-shaped block at the southern end and four smaller stones, suggesting the tomb originally had a more complex arrangement.

The monument’s slow disappearance tells a familiar story of Ireland’s archaeological heritage. By 1905, the Ordnance Survey noted only ‘several large stones’ remained at the site. According to local memory, four stones survived until around 1930, when they were finally removed; one was reportedly buried whilst the others found new life in nearby field walls. Today, nothing visible remains of this ancient tomb, which once served as a landmark in the Donegal landscape and a tangible connection to the area’s prehistoric past.