This is a cashel, the term used for a ringfort built from stone rather than earthen banks, and this example in Kealanine measures a consistent 34 metres across in both directions, giving it a regularity that is still legible from ground level despite centuries of agricultural use pressing in around it.

The enclosing bank, built by the dump-construction method in which stones are simply heaped and packed rather than carefully coursed, reaches a maximum height of 1.2 metres and has been further reinforced at some point by a drystone wall laid along its top, a later addition that suggests the structure remained useful long after its original purpose had faded. Two deliberate gaps interrupt the circuit: one to the west-south-west at 2.5 metres wide, one to the north-north-west at 2.7 metres, likely the original entrance and a secondary opening. Inside the enclosure, cultivation ridges run on an east-west axis, evidence that the interior was at some stage turned over to tillage, probably during periods of agricultural pressure when any flat or sheltered ground was worth working. A cairn of dumped stones sits against the inside face of the bank on the eastern side, its origin and purpose unrecorded, though such accumulations often represent cleared field material or the casual disposal of stone over generations of farming.

The site sits just above a sharp break in the slope of a north-east to south-west ridge, a position typical of cashels across Munster, where builders favoured elevated ground with good drainage and visibility without committing to a fully exposed hilltop. The later wall along the bank top is a small but telling detail: it marks the moment when an ancient boundary was quietly absorbed into the working landscape, its age perhaps forgotten, its usefulness still plain.