The feature is a rath, the Irish term for a ringfort, and what makes this one quietly arresting is not its scale but what lies beneath it. Built into the interior is a souterrain, an underground stone-lined passage or chamber of the kind that early medieval farming communities constructed for storage, refuge, or both. The combination of an earthen enclosure and a subterranean annex speaks to a site that was once the hub of a farmstead, designed both to define a household's territory and to conceal whatever, or whoever, needed concealing.

The earthwork itself measures roughly 25 metres in diameter, enclosed by a bank standing about 1.6 metres high with an external fosse, or ditch, of similar depth. Ringforts of this type were built predominantly during the early medieval period, broadly between the fifth and twelfth centuries, and they were the standard settlement form across much of Ireland during that era. Thousands survive across the country, though many are in far worse condition than this. The bank here, despite being heavily overgrown, retains its profile, and a gap noted on the eastern side may represent an original entrance, a point of orientation that was often deliberate in ringfort construction. The accompanying souterrain is recorded separately, suggesting it was substantial enough to merit its own classification.