What makes it unusual is its layered geometry: a flat raised platform at the centre, roughly 24 metres across and about a metre high, ringed by a wide internal fosse, a berm, and then an outer bank, all contained within an overall diameter of 56 metres. A fosse, in this context, is simply a ditch, and together with the berm (the flat shelf of ground between ditch and bank) it gives the whole monument the kind of concentric, deliberate profile that took real effort to achieve.

This is a barrow, a burial or ceremonial mound of the sort raised across Ireland during the Bronze Age, though many were also constructed in earlier and later periods. The particular arrangement here, with its raised central platform enclosed by a ditch and outer bank, follows a form sometimes described as a platform barrow, and it is a relatively uncommon variant. The site was noted by William Wilde in 1872, the same William Wilde who was an antiquarian and surgeon, and father of Oscar, and who made extensive surveys of Irish monuments during the nineteenth century. The structure was recorded as being in fair condition, which, given the pressures that low-lying agricultural land places on earthworks, suggests it has retained something close to its original profile.