It sits on south-sloping pasture above Portmagee Channel, unannounced and largely unnoticed, its low earthen bank worn down by centuries of weather and the persistent pressure of cattle hooves. This kind of enclosure, a roughly circular area enclosed by a raised bank or ditch, appears across Ireland in various forms and periods, sometimes associated with early medieval farmsteads, sometimes with much older activity. This particular example, just nine metres in internal diameter, is modest even by those standards.

What survives is fragmentary. The bank is eroded and heavily overgrown, and holds its best shape along the southern sector, where it still stands around 65 centimetres high on its outer face and 40 centimetres on the inner. Cattle have pushed through repeatedly, leaving tracks across the earthwork, and a substantial break on the northern side suggests a long history of use as a through-route for livestock. Whether that northern gap was also the original entrance, or simply a point of weakness that animals have widened over time, is not known. The enclosure does not give that away easily.