The rectangular mound, measuring roughly 24 metres east to west and 21 metres north to south, sits in a place locally known as Church Field. There is no stonework, no outline of walls, nothing at ground level to suggest what lies beneath. The church has been invisible for a very long time.

By 1839, when the Ordnance Survey Letters recorded local place names and traditions across Ireland, a surveyor noted only "a small obsolete burial ground" here, adding that no trace of a church could be discovered. Writing in 1905, the historian Carrigan confirmed that the church had been very ancient, situated at the northern extremity of the townland, one field from the Dinin River, but that not a vestige remained. What had persisted, however, was the burial ground, overgrown with bushes and used for the interment of unbaptised children. This kind of informal burial place, sometimes called a cillín, was common in Ireland into the twentieth century; children who died before baptism were considered ineligible for consecrated ground, and so were buried in liminal spaces, old ruins, or field boundaries. The Irish name recorded for this spot, Sceac na nGéarlach, means roughly "the bush of the children", a name that carries its own quiet weight. Before the Reformation, Carrigan noted, the lands of Lisnafunshin and nearby Newtown had belonged to St. Francis' Abbey in Kilkenny, which may explain the origins of the church, though no detail of its form or dedication has survived.