Dense vegetation has colonised the interior, and the northern section of the bank has been worn almost flat, leaving just enough of the original form to read the shape of what was once a self-contained farmstead. The eastern side retains a gap of roughly a metre across, which is thought to mark where the original entrance once stood.

This is a univallate rath, meaning a ringfort enclosed by a single bank and ditch, the most common type of early medieval settlement monument found across Ireland. Thousands were built, typically between the sixth and tenth centuries, and most served as the enclosed farmsteads of free farming families. This particular example is modest in scale, with an internal diameter of around sixteen metres north to south and fifteen metres east to west. The enclosing earthen bank still stands to about 1.1 metres in height and 1.3 metres in width along its better-preserved stretches. The townland name, Buaile Uí Chuill, contains the Irish word buaile, which generally refers to a seasonal grazing place or milking ground, hinting at a long agricultural continuity in this corner of the Iveragh Peninsula in south Kerry. A. O'Sullivan and J. Sheehan documented the site as part of a comprehensive archaeological survey of the Iveragh Peninsula published by Cork University Press in 1996.

The interior has yielded no visible features, buried as it is under heavy overgrowth, so there is little to interpret on the ground beyond the enclosure itself. What gives the spot its quiet appeal is the setting: a small, partially eroded earthwork in everyday pasture, overlooking a tidal creek and the wide sweep of Ballinskelligs Bay beyond.