It is a rath, the Irish term for a ringfort, the kind of enclosed farmstead that was the typical unit of rural settlement in early medieval Ireland, roughly between the fifth and twelfth centuries. Thousands of them once dotted the country; many have been levelled entirely, which makes even a battered survivor worth pausing over.

This particular example encloses an oval area measuring approximately 45 metres east to west and 36 metres north to south. It is defined by an earthen bank some 4.5 metres wide, which rises about 0.4 metres above the interior ground level and a more pronounced 0.9 metres on the outer face, suggesting the interior was deliberately raised or that the bank was built up from material thrown inward. Beyond the bank runs a fosse, a shallow external ditch originally intended to reinforce the enclosure, though it now measures only 2 metres wide and 0.3 metres deep, its profile blunted by modern field drainage. No original entrance can be identified at the perimeter. More intriguing are two stone slabs recorded 7 metres west of the centre of the enclosure, catalogued separately, whose function is not explained by the surviving evidence. They may be structural remnants, the traces of an internal building, or something else altogether.