It is only about eight metres wide and barely half a metre high, extending roughly fifteen metres before giving way to a scarp that continues beyond the graveyard's north wall, turns southward, and traces an irregular course along the east side of the enclosure. The irregularity itself is part of what makes it interesting: this is not the clean geometry of a deliberately engineered boundary.

The earthworks sit in close proximity to a church and graveyard, both recorded features of the Killallaghtan landscape, but whether the bank and scarp were ever functionally connected to either remains genuinely uncertain. They may represent an earlier phase of enclosure around the ecclesiastical site, a common enough feature in early medieval Irish contexts where a series of concentric banks would define the sacred and domestic zones of a monastery or church settlement. Equally, they may predate the church entirely, or belong to an entirely separate agricultural or territorial arrangement. The irregular course of the scarp along the east wall does little to settle the question; it suggests either adaptation to earlier features in the ground or a history of partial modification over time.