On the lower slope of Croughaun Hill in County Waterford, there is an early ecclesiastical enclosure that has effectively vanished from the surface of the landscape, yet refuses to disappear entirely. The earthen rampart that once defined a roughly circular boundary, approximately thirty metres across and enclosing about two acres, is no longer visible to the eye. What gives the site away, when the ground is ploughed, is a patch of darker soil, the kind of discolouration that accumulates over centuries of human activity, the residue of a community that gathered, worshipped, and buried its dead within a defined sacred boundary.

Ecclesiastical enclosures of this kind, typically circular or oval earthworks surrounding an early church and its associated buildings, are found across Ireland and generally date from the early medieval period. The Kilcanavee example was associated with a church, as recorded by Power in 1952, though the church itself has also vanished. One physical remnant does survive, however, and it is easy to overlook precisely because it has been absorbed into the ordinary fabric of the countryside. A chamfered jambstone, which is a dressed stone from the side of a doorway with its edges cut at an angle, has been built into the outer face of the road wall immediately adjacent to the site. It is the kind of repurposing that happened routinely when old structures fell into ruin and their cut stone became convenient building material, and it means that a fragment of the original church entrance is now quietly embedded in a roadside wall, passed daily without a second glance.