What makes it quietly odd is that it went unrecorded on Ordnance Survey maps in both 1838 and 1922, passing through nearly a century of cartographic documentation without leaving a mark, despite being a designated National Monument.

The rath, a ringfort of earthen construction, measures roughly 20.6 metres on its northeast-southwest axis and around 20 metres northwest-southeast, defined by an irregular, broadly sloping scarp rather than a sharp bank. Ringforts of this type were typically used as enclosed farmsteads in early medieval Ireland, the raised interior providing a defensible platform for a household and its animals. The northern half of the interior is level, but a rough scarp running east to west marks a drop in the ground toward the southern third, suggesting the interior was not entirely uniform. In the northeast quadrant there is a souterrain, an underground stone-lined passage associated with ringforts and used variously for storage, refuge, or ventilation, visible now only as a subrectangular depression in the ground. Later field boundaries of earth and stone have been laid across the northeastern and southeastern arc of the rath, showing how subsequent farming activity quietly absorbed the monument into its own logic. Close by, to the south and northwest, are traces of possible house sites, and two further raths lie within 150 metres to the north and northeast, suggesting this terrace above the estuary once supported a small cluster of enclosed settlements looking out over the same stretch of water.