It is not a dramatic landmark. Roughly circular in plan, it measures around nineteen metres in diameter and rises only two and a half metres from the surrounding ground, which makes it easy to overlook from a distance. What lifts it out of the ordinary is a rectangular block of granite resting along its south-eastern edge, a stone measuring roughly three-quarters of a metre in length, with a squared socket cut into its upper surface. That socket, clearly deliberate, appears designed to hold something upright, most likely a cross or a marker of some kind, though whatever once stood there is long gone.

The mound sits in a low-lying position rather than on elevated ground, which sets it apart from the hilltop ringforts and burial mounds more commonly associated with early Irish earthworks. Along the southern edge of the site, an elongated, waterlogged hollow may offer a clue to the mound's construction; it is thought this depression could be the source from which the material was originally dug and piled. The relationship between the hollow and the mound is not confirmed, but the alignment is suggestive. The granite socket stone adds a further layer of uncertainty. Socketed stones of this kind are found in various ecclesiastical and boundary contexts across Ireland, but without documentary or archaeological evidence it is not possible to say with confidence what tradition this one belongs to. The site was recorded and compiled by archaeologist Geraldine Stout, with notes uploaded to the record in September 2011.

The mound sits on what were formerly the grounds of the Apostolic Nunciature, the diplomatic residence of the Vatican's representative to Ireland, a setting that gives the site an additional layer of historical layering without explaining it. Access to the grounds is not public in the conventional sense, so any visit would require prior consideration of current land arrangements. The mound itself is unenclosed and sits in grassland, so the socket stone on the south-eastern edge is visible at ground level. It is an easy thing to crouch beside and examine closely, the cut socket still clean and purposeful-looking, holding its question open.