It is a quiet anomaly: most of the perimeter is defined by that bank, three to four metres wide but unassuming in height, yet at the north the builders chose stone, set on end, in a line. Whether this reflects a practical difference in the original ground, a change in construction phase, or some symbolic logic is not recorded.

The enclosure itself is roughly oval, measuring approximately 29 metres on its north-west to south-east axis and 26 metres on its north-east to south-west axis, dimensions consistent with an early ecclesiastical site of modest scale. It appears on the first edition Ordnance Survey map of Ireland, produced in the nineteenth century, which means the earthwork was sufficiently intact at that point to be recorded by the surveyors. Inside the enclosure sits the remains of a church, a configuration typical of early Irish religious sites where a circular or oval boundary, known in the archaeological literature as an ecclesiastical enclosure, defined a sacred precinct around a place of worship. Such enclosures could serve practical, spiritual, and legal functions simultaneously, separating the church and its associated ground from the secular landscape beyond.