Only half of it is there, or rather, only half of it is visible. The enclosure is semi-circular, its eastern edge absorbed long ago into a straight townland boundary wall running north to south, with no trace of whatever earthwork once continued beyond it. Whether the wall was built along the line of the original bank, cannibalising it, or whether the fort was always somehow incomplete, is not clear. What remains is an interior roughly 16.8 metres across, a levelled platform that drops about a metre to the field on its northern side and retains a low bank to the south, standing around a metre high on the inside and barely a fifth of that on the outer face.

Ringforts, known in Irish as raths, were the most common form of enclosed settlement in early medieval Ireland, typically dating from roughly the sixth to the twelfth century. They served as farmsteads, defined as much by social status as by defence. This one, at Ardbeg on the Dingle Peninsula, carries an additional layer of local memory: there is a tradition that a souterrain lies somewhere beneath or within the enclosure. A souterrain is an underground stone-lined passage, often associated with ringforts and used variously for storage, refuge, or ventilation. Nobody living has seen it, and it has not been located in any recorded survey. It persists only as a story passed between people who live near the slope, which is perhaps its own kind of evidence that something unusual was once known to be here.