It is a rath, the Irish term for a ringfort, the most common type of early medieval enclosure found across Ireland. Farmers and cattle lords built them roughly between the fifth and twelfth centuries as defended homesteads, marking status as much as providing genuine security. This one measures about 22 metres in diameter, modest in scale, and is defined by a circular earthen bank with a U-shaped ditch, or fosse, running around its outer edge.

The earthwork has been recorded in some detail. The bank itself is around four metres wide, rising just over half a metre above the interior ground level but nearly twice that on the outer face, where the spoil from the fosse would have added to its apparent height. The fosse is three metres across and drops just over a metre at its deepest point. On the southern side, faint traces of what may be a second, outer bank survive, though these are slight enough that their original purpose is difficult to read. A gap of six metres in the bank and fosse on the west-northwest side is the most likely candidate for the original entrance. Within the interior, the ground is noticeably uneven, and at the centre there is what appears to be a souterrain, an underground stone-lined passage or chamber that was commonly built beneath ringforts for storage or refuge. Whether that feature has ever been properly explored is not recorded.