It was brought to the attention of the National Monuments Service by a member of the public, Darrie Boushel Payne, which is in itself a small reminder of how many prehistoric structures in Ireland remain outside any formal inventory until someone happens to notice them.

The tomb belongs to a class known as wedge tombs, the most numerous of Ireland's megalithic monument types, built during the late Neolithic and into the early Bronze Age, roughly between 2500 and 2000 BC. The defining characteristic of a wedge tomb is its shape: wider and taller at the western entrance end, tapering toward the east. This example follows that pattern faithfully. It is constructed from three heavy slate slabs, with a sidestone to the north and another to the south, capped by an almost square roofstone measuring roughly 2.57 metres east to west and 2.22 metres north to south. The southern sidestone, 2.72 metres long, tapers toward the east and leans noticeably outward. The northern sidestone has fared less well; it has collapsed inward into the chamber, and the roofstone now rests partly on top of it. Despite this, the roofstone still makes contact with the southern sidestone, holding its position above what remains of the chamber. The western end of the chamber measures 0.82 metres across, narrowing toward the east as the tomb's form demands. The northern sidestone projects roughly 0.4 metres beyond the roofstone at the western end, which may represent the remains of a simple portico, a small entrance feature sometimes found at the front of wedge tombs. Approximately 90 metres to the southwest, a standing stone is visible, suggesting the wider landscape around this knoll was meaningful to the people who shaped it.