That understated quality is part of what makes it interesting. The structure has been classified tentatively, appearing in earlier surveys as a possible ring-barrow, which is a type of funerary monument in which a central mound is enclosed by a circular or near-circular bank and ditch. Here, though, the geometry is subtly off: both the outer ring and the inner cairn are subrectangular rather than round, giving the site a faintly angular character that sets it apart from the more familiar circular barrow tradition.

The outer ring of stone measures roughly 11.6 metres north to south and 8.5 metres east to west, with a width of around two metres and a height of only 0.2 to 0.3 metres, so it barely rises above the surrounding ground. Inside it, the cairn itself reaches 1.3 metres at its highest point, with dimensions of 8.4 by 6.7 metres. Eight kerbstones survive, six of them arranged in an almost straight line along the northern edge of the cairn, with two more marking the southern extent. Kerbstones are the upright or recumbent stones set around the base of a cairn to retain its fill, and their survival here, even in a disturbed monument, offers a legible outline of the original structure. The cairn has been heavily interfered with: a quarry cut into it, measuring roughly 4.35 by 2.8 metres and aligned east to west, has removed material and disrupted the interior. What appears to be the fosse, the ditch that would typically encircle a ring-barrow, may simply be natural limestone pavement rather than any deliberately dug feature, a reminder that on the Burren the bedrock is never far below the surface and prehistoric builders worked with and around it constantly. A higher ridge rises about 500 metres to the west, and the monument sits on the level ground below it, neither hidden nor prominently positioned.