This circular structure, measuring roughly 19 metres east to west and 18 metres north to south, sits on a terrace that commands excellent views across the bay whilst being sheltered by rising ground to the north. The site occupies a dramatic position on a broad peninsula forming the eastern edge of Killybegs Bay, where the sharply undulating terrain is punctuated by limestone outcrops. Just south of the enclosure, the ground falls away sharply before plunging into a steep-sided glen that runs northeast to southwest, eventually opening onto a small stony beach.

Today, only the footings of the original stone wall remain, appearing as a low, grass-covered rise between 1.5 and 2 metres wide. Random stones protrude along the circuit, marking where the wall once stood to a greater height. The wall remnants reach just 20 centimetres high on the interior side, whilst the exterior height varies between 20 and 50 centimetres depending on the natural slope. A three-metre gap on the western side likely marks the original entrance to the enclosure.

The interior space follows the natural gradient of the ridge, sloping gently from north to south in its northern half, with no evidence of artificial raising or levelling. This simple yet strategic placement, taking advantage of natural defensive features like the precipitous drop to the south whilst maintaining sight lines across the bay, suggests the enclosure may have served as a lookout post, defensive structure, or perhaps an early farmstead making use of the surrounding pasture land.