Located roughly 150 metres east of the river, which flows into Lough Swilly just 500 metres to the north, this megalithic monument opens downhill towards the southeast, offering commanding views across the lough. The tomb’s unassuming presence belies its archaeological significance as one of Donegal’s documented prehistoric burial sites.

The structure consists of a modest roofless chamber measuring approximately 2 metres in length and 1.4 metres in width. Visitors enter through two portal stones set lengthwise, though only the western stone remains intact at 1.55 metres high; its eastern counterpart was reduced to a 35-centimetre stub sometime between 1929, when it was recorded as complete, and 1975. The chamber itself is formed by two side slabs that lean inward against a slightly gabled backstone. The eastern sidestone, which would stand 1.35 metres if upright, overlaps with the adjacent portal stone and rises from ground level, whilst the western sidestone measures 1.5 metres and stands roughly in line with its portal stone, separated by half a metre.

This tomb has attracted scholarly attention since at least 1929, when Somerville first documented it with a plan drawing. Subsequently, it has featured in numerous archaeological surveys including de Valera’s work in 1951, multiple studies by Ó Nualláin throughout the 1960s and 1980s, and Eamon Cody’s comprehensive Survey of the Megalithic Tombs of Ireland in 2002. Despite its absence from official maps, the monument remains an intriguing example of Ireland’s portal tomb tradition, its stones still marking an ancient burial place whilst offering visitors that same view over Lough Swilly that mourners would have seen thousands of years ago.