What makes it quietly arresting is its compactness: the chamber is only a metre long, tapering from roughly 1.2 metres wide at its western end to 0.8 metres at the east, and it narrows in height in the same direction. A single roofstone covers it. The whole thing has the proportional logic of a stone wedge pressed into the hillside, which is precisely what it is.

Wedge tombs are the most numerous of Ireland's megalithic tomb types, built broadly in the late Neolithic and into the early Bronze Age, perhaps between 2500 and 2000 BC. They are characterised by this tapering plan, typically opening towards the south-west, and this example follows that convention faithfully. The chamber here is formed by a single slab on each of the north and south sides, with a backstone set into the eastern, narrower end. Single outer-wall stones survive on both the north and south flanks, remnants of what would once have been a more substantial double-walled structure. Faint traces of a surrounding mound persist to the east and west of the chamber, suggesting the tomb was never entirely freestanding but embedded in a low earthen cairn. The description, recorded by Ó Nualláin in 1989, captures a monument stripped back to its essential bones, its covering material long gone, leaving only the stone logic of its original design.