On the east-facing slope of a low ridge in Killure, County Waterford, a fragment of old stonework survives in a condition that makes it genuinely difficult to say what it once was. A section of wall, roughly 3.6 metres long and standing to about 4 metres in height, retains a buried arch on its southern face. From this wall, slight scarps, low earthen ridges just barely legible in the grass, run northward to a nearby medieval church and extend some 40 metres to the west. The most plausible reading of this arrangement is that it represents the boundary of a church precinct, the enclosing wall of a religious compound now largely swallowed by turf and time.

The church nearby was associated with the Knights Hospitaller, a military religious order founded in Jerusalem in the twelfth century that later became significant landowners across medieval Ireland. That connection gives the remains at Killure some weight. When the antiquarian John O'Donovan visited the area around 1840, he recorded his impression in terms that complicate the tidy interpretation of a precinct wall; he described the structure as a building in its own right, not merely a boundary feature. His account was later published by M. O'Flanagan in 1929. Whether O'Donovan was responding to visible features since lost to the ground, or simply reading the landscape differently, cannot now be settled. The wall and its buried arch remain, and the question of what exactly they once formed part of remains open.