A cashel is a ringfort built from stone rather than earth and timber, a form of enclosed settlement common across early medieval Ireland, and this one in north Kerry preserves its structure with unusual completeness. What makes it immediately striking is the sheer mass of its enclosing bank: stone-lined, roughly 6.4 metres wide, and rising in places to nearly four metres on the outside face. That is not a boundary marker. That is a wall built by people who meant it.

The fort is classified as univallate, meaning it has a single enclosing bank rather than the multiple concentric rings found at more elaborately defended sites. Its interior is sub-circular, measuring around 30 metres north to south and 35 metres east to west, and sits at a slightly higher level than the surrounding ground. A shallow external fosse, essentially a ditch cut to reinforce the defensive profile of the bank, runs from the north-west around through the north and east to the south-east, where it remains roughly two metres wide and about half a metre deep. The single entrance, facing east at 2.6 metres wide, would have been the sole point of passage in or out. The surrounding field boundaries, running into the enclosing bank from the north-west and south-east, suggest that later agricultural activity gradually absorbed the structure into its own logic, using the ancient stonework as a convenient edge for newer field systems. C. Toal's North Kerry Archaeological Survey, published in 1995, records the site in detail and remains the principal source for its dimensions and condition.

The fort sits at a field corner, which means its profile is most legible from outside the enclosure, where the full external height of the bank can be appreciated. The eastern entrance offers the clearest sense of how the interior was organised relative to the surrounding land, and the line of the fosse, though shallow, is still traceable in the ground as it arcs around the northern and eastern sides.