The ringfort known as Cloghaunleaghaniska Fort, or Clochán Liath in Irish, is one such place: a site that existed clearly enough to be mapped by the Ordnance Survey in the nineteenth century, and then vanished so completely that the surveyors themselves recorded the change, marking it on their second edition map not as a fort but as the "site of" one. That quiet editorial correction is, in its own way, a small document of erasure.

Ringforts, sometimes called raths, were enclosed farmsteads typical of early medieval Ireland, usually circular earthen banks surrounding a dwelling and associated outbuildings. They were among the most common settlement forms of their time, and thousands survive across the country in varying states of preservation. This particular example, described in the Ordnance Survey Name Books as a circular earthen fort, once stood north of the confluence of the Owroe and Inny rivers, just south-west of Colly mountain on the Iveragh Peninsula in south Kerry. By the time the second Ordnance Survey edition was produced, the physical structure had already gone. Today no trace remains on the ground. The site is documented in the archaeological survey of the Iveragh Peninsula compiled by A. O'Sullivan and J. Sheehan, published by Cork University Press in 1996, which drew on that earlier Ordnance Survey evidence to place it in the record even in its absence.