That is roughly the situation at Corrogemore in County Tipperary, where a monument that had stood long enough to be carefully mapped and named on the Ordnance Survey's first six-inch edition in 1840 did not survive the decade that gave us flared trousers and colour television.

The stone appears on both the 1840 and 1954 editions of the six-inch Ordnance Survey map under the Irish name Coirthe Tlachtgha, positioned in the northern portion of a graveyard associated with the medieval church of Corroge. The name is telling. Patrick Dinneen's 1927 Irish dictionary gives "coirthe" as a stone, specifically a memorial stone, while "tlachtgha" carries the meaning of a seat of early rights, suggesting this was no ordinary field marker but something with ceremonial or legal significance in the early Irish tradition. Standing stones of this kind often predate the Christian sites they end up adjacent to, and the combination here, a named memorial stone within a medieval churchyard, points to layers of use stretching back well before the church itself was built. At some point in the 1970s, when the graveyard was absorbed into the workings of a neighbouring quarry, the stone was broken and pushed to the south-eastern edge of the old burial ground, where it remains.