This Neolithic monument overlooks two other excavated court tombs nearby; Shalwy lies 400 metres to the southwest, whilst Croaghbeg sits a further 200 metres in the same direction, just 300 metres from a small sandy beach on Donegal Bay. From this elevated position, the site commands extensive views across to the north Connacht coastline.

When Thomas Fagan visited in 1847, ten standing stones and several fallen ones marked the site, but by the mid-20th century only six upright stones remained visible. Excavations conducted in 1964 and 1965 revealed the monument’s complete ground plan: an oval forecourt at the southeast end leading to a gallery divided by stone jambs into two chambers, all originally enclosed within a cairn bordered by drystone walling. The cairn, measuring 19 metres long and 10 to 11 metres wide for most of its length, had been deliberately levelled at some point in antiquity, though the basal layer of its revetment wall survived largely intact. The oval court, approximately 6 metres long and 5 metres wide, was accessed through a 2-metre-long entrance passage that had been blocked with large stones, whilst the gallery behind stretched about 5 metres in length and 3 metres in width.

Though no bone survived at the site, the excavations yielded a remarkable collection of Neolithic artefacts. The finds included numerous flint implements such as plano-convex knives, leaf-shaped and lozenge-shaped arrowheads, scrapers, and a javelinhead fragment, along with part of a polished mudstone axe, clear quartz crystal, and three stone beads; one lozenge-shaped and two sub-spheroid. Pottery sherds from at least one large decorated bowl were scattered throughout the front chamber floor. Most intriguingly, many of these objects were found in specific contexts: some beneath the cairn base, others at the cairn perimeter, and a concentration within the front chamber itself, suggesting deliberate placement as part of burial rituals performed by the farming communities who built this impressive monument over 5,000 years ago.