This is a cashel, the Irish term for a ringfort built entirely of dry stone rather than earthen banks, and what makes this particular example quietly unsettling is how thoroughly it has been colonised by continuity. The field walls adjoining it to the west are built in exactly the same manner as the cashel wall itself, and the facing of the probable original entrance merges, without a break, directly into a later field boundary heading north-east. The enclosure has not been destroyed so much as absorbed.

The cashel measures roughly 24 metres across at its widest and sits within a cluster of similar enclosures strung along the same mountain slope, suggesting this was once a more densely settled territory than the bare hillside now implies. The enclosing wall, which reaches a maximum external height of 1.7 metres on the western and north-western sides, is built in a technique common to early medieval Irish stone construction: larger, heavier stones in the lower two or three courses, averaging around 75 by 45 centimetres, with considerably smaller stones above. At three points around the perimeter, marked triangular projections jut outward, and while their purpose is not certain, there is no reason to think they were added later. Inside, the ground slopes gently downhill to the north-west, but the south-eastern sector was deliberately built up to create a level platform for habitation. Three structures cluster in the eastern half of the interior. The most legible is a stone hut whose builders cut a small lintelled niche into the inner wall face, just 45 centimetres wide and barely above ground level, the kind of detail that suggests domestic life rather than ceremonial use. A semi-circular structure sits immediately to the north-west, though whether it was ever a complete circle is unclear, and a sub-rectangular area between the round hut and the southern enclosure wall may represent the footprint of a third building. The 1986 Dingle Peninsula archaeological survey by J. Cuppage recorded only one hut here, meaning the semi-circular structure may post-date the original settlement entirely.