At its centre, an overgrown mound rises to just under a metre, and within that mound sits a depression roughly four metres across. On both editions of the Ordnance Survey map, this hollow is labelled simply as a "cave", which is the kind of cartographic understatement that tends to mean something more deliberate lies beneath.

The enclosure is a cashel, the stone-built equivalent of the more familiar earthen ringfort, a form of enclosed farmstead common in early medieval Ireland, typically associated with the period between roughly the sixth and tenth centuries. This example measures about 26.5 metres north to south and 25.8 metres east to west, with the inner face of the surrounding wall still standing to around 0.6 metres, and surviving outer sections suggesting the wall was originally some 2.75 metres wide, substantial enough to have been a serious boundary. The mound at the centre, overgrown and subcircular, is the more intriguing feature. According to Nyhan, cited in McCarthy's 1977 work, a souterrain was discovered here. A souterrain is an underground stone-lined passage or chamber, built in early medieval Ireland for purposes that are still debated, storage, refuge, and ventilation of a dwelling above have all been proposed. The central depression, half a metre deep and consistent with a collapsed or partially excavated underground structure, corresponds with what the Ordnance Survey mapmakers were recording, however obliquely, when they marked the spot as a cave.

The site sits in farmland, so access would depend on the landowner, and the overgrown condition of the central mound means the surface evidence is subtle rather than immediately legible. The well-preserved inner wall face and the surviving outer sections to the north-east, east-south-east, and west-south-west reward a careful circuit of the enclosure, giving a clear sense of the original scale of the structure.