This one, overlooking Bunacurry Harbour in County Mayo, earned its place through a tip-off, and then promptly refused to exist. Listed as an enclosure, a term generally applied to a defined area bounded by an earthen bank, ditch, or wall and associated with early settlement or enclosure of land, it was added to the Sites and Monuments Record in 1991 and carried forward into the Record of Monuments and Places in 1997, based on information passed to the survey rather than on any direct observation. When someone actually went to look in 1996, they found nothing.

The site sits in pasture ground beside a ruined vernacular settlement, the kind of modest, unadorned dwelling that once housed ordinary rural families across the west of Ireland, many abandoned during or after the nineteenth century. Neither the Ordnance Survey six-inch map of 1838 nor its 1919 revision shows any trace of an enclosure in the area, which may suggest that whatever prompted the original report was either misidentified, has since disappeared entirely beneath the soil and grass, or was never there at all. The harbour below, Bunacurry on Achill Island, gives the townland its name, Bun an Churraigh meaning roughly the foot or end of the marsh or curragh.

What remains, in practical terms, is a question mark on the landscape. The ruined settlement is real enough, and the setting above the harbour is quietly evocative, but the enclosure itself exists only as a bureaucratic ghost, a record of something that may never have been there to begin with.