It does not announce itself dramatically. The ground simply rises, almost imperceptibly at first, and then you are standing on a roughly circular platform some 41 metres across from north to south and 38 metres from east to west, its surface elevated no more than 0.7 metres above the surrounding field. An earthen bank rings much of it, standing about 0.8 metres high on the interior face and slightly less on the outer side. On the eastern edge, a later field boundary has replaced the original bank entirely, absorbing the ancient into the agricultural without ceremony.

This kind of earthen enclosure is a recurring feature of the Irish countryside, typically associated with the early medieval period, roughly 500 to 1100 AD, though dating individual examples without excavation is rarely straightforward. Such enclosures, often called raths or ringforts, functioned as enclosed farmsteads, the bank and its presumed original timber palisade marking out a family's dwelling space and offering some protection for livestock. What makes the Carrigacunna example quietly interesting is the care visible in its construction relative to its terrain. The platform is most sharply defined along the western to south-eastern arc, where it has been deliberately built up to counteract the natural fall of the hillside, effectively levelling the interior against the slope. The gap between the bank and the platform edge varies from around three metres on the northern side to just one metre to the west, and from the south-east round to the south-west the bank merges flush with the platform itself. The interior, despite that engineering effort, still tilts gently down toward the north-east.

The site sits in open pasture, and the contrasting textures of the earthwork and the nearby tree line make it easier to read on the ground than many comparable monuments. The slight but deliberate raising of the western and south-eastern portions is the detail most worth pausing over: it speaks to the practical intelligence of whoever laid this out, adjusting the design not to some ideal geometry but to the specific demands of the ground beneath their feet.