It is a quiet kind of displacement: sacred architecture built directly over industrial infrastructure, with almost no visible trace of what came before. The mill itself has vanished entirely, absorbed into the early nineteenth-century building that replaced it, yet the water-management system that once served it lingered on in the landscape for considerably longer.

The mill's presence here is first confirmed in the Down Survey barony maps of 1655 to 1656, a Cromwellian-era cartographic project that recorded land ownership and features across Ireland in remarkable detail. By the early nineteenth century, according to Ó Donnagáin, the old mill had been demolished and the chapel built in its place. What survived the transition was the mill race, a channel cut to divert river water and drive the mill's wheel. Running approximately 550 metres on a broadly north-south alignment, this channel was recorded on the Ordnance Survey six-inch map of 1842, though without any label. By the time the same series was revised in 1904 and again in 1936, the channel had acquired a name on the map: Mill Race (Disused). The parenthetical carries a particular melancholy. The infrastructure outlasted the mill by generations, long enough to be named, and named specifically as something no longer functioning.