The site itself is a univallate rath, meaning it is enclosed by a single earthen bank rather than the multiple concentric ramparts found at more elaborate examples. That bank is well-defined and noticeably asymmetrical: the exterior face drops away steeply, while the interior slope is considerably gentler, a feature often associated with deliberate defensive shaping rather than simple field clearance or agricultural use.

What makes this particular rath worth a second look is what sits within its western sector. An oblong mound, roughly 1.6 metres by 5.2 metres internally and standing about a metre high, projects from the interior, and extending outward from it is a narrow ridge, approximately 2 metres wide and 8 metres long, curving away to the south-east. The gap between the two features is only around 6 metres, and researchers have suggested that the mound and the ridge may not be two separate structures at all, but the surviving ends of a single tunnel or souterrain, with the middle section having collapsed inward over time. A souterrain is an underground stone-lined passage, typically associated with early medieval ringforts and used variously for storage, refuge, or ventilation of a dwelling. If that interpretation is correct, what visitors see above ground is effectively the negative space left by a buried corridor, its middle swallowed by centuries of subsidence. The northern portion of the enclosure is further defined by a fieldbank running from the north-west through to the north-east, suggesting the site was integrated into a working agricultural landscape rather than standing in isolation.