The site is entirely invisible at ground level, leaving no ridge, no hollow, no shadow in the grass to betray its presence. That invisibility is itself a kind of clue to its age, since centuries of cultivation, animal grazing, and soil movement can reduce even substantial earthworks to nothing the eye can read from a standing position.

What the ground conceals, old maps reveal. The Ordnance Survey's six-inch map of 1838 recorded the feature as a circular enclosure, the kind of roughly round earthwork, typically defined by a bank and ditch, that appears across Ireland in forms ranging from prehistoric settlements to early medieval farmsteads. By the time the 1907 edition was produced, the cartographers described the same spot as a mound roughly thirty metres in diameter. Whether that reflects a genuine change in the physical remains between the two surveys, or simply a difference in how successive map-makers interpreted what they saw, is difficult to say with any certainty. What the two records together suggest is a site of some antiquity that was already losing its definition above ground over the course of the nineteenth century.