This one in the townland of Kilmog, County Kilkenny, announces itself with nothing at all. At ground level there is no visible trace of it, only a field running alongside a road, and the memory preserved in a place name.

The townland name itself carries the evidence. Kilmogga, in Irish, means 'the church of St. Magadh', and a 13th-century charter already knew about this church, suggesting it had been established long enough by then to be worth recording in a legal document. Writing in 1905, the historian William Carrigan, drawing on John O'Donovan's Ordnance Survey letters of 1839, located the vanished churchyard with some precision. A gravel pit sitting five to ten metres behind a holy tree and a bullaun stone, which is a boulder with one or more cup-shaped hollows worn or carved into it, traditionally associated with early Christian and pre-Christian ritual, marked what local tradition held to be the site of the obliterated churchyard. Carrigan was confident: here, he concluded, must have stood the ancient church from which the whole townland took its name. The gravel pit itself appeared on the first edition Ordnance Survey six-inch map of 1839 and was still visible on the 1947 revision, in the field immediately south of what the maps call St. Patrick's Bush.

What remains today is a cluster of associated features, the holy tree, the bullaun stone, the field, and a name that has quietly carried the saint's memory for the better part of a millennium, long after the church and its graveyard ceased to exist in any form that the eye can find.