Somewhere beneath the grazing pasture on the southern slope of Cashlaunowen Hill, at the western edge of the Ballyhoura mountains in north Cork, lies what was once a rath, a type of circular earthen enclosure used throughout early medieval Ireland, typically as a farmstead or defended homestead. The earthworks have been levelled so completely that no trace remains visible at ground level. The site survives now only on paper, and in the soil beneath the grass.

What we know comes largely from the Ordnance Survey's six-inch map of 1842, which records the enclosure as a hachured circle, the cartographers' shorthand for an earthen bank or mound, with a diameter of roughly twenty-five metres. That the surveyors thought it worth marking suggests it was still legible in the landscape at the time of mapping, which puts its disappearance sometime after the mid-nineteenth century, most likely the result of agricultural improvement, the ploughing out of field boundaries and earthworks that accelerated across Ireland during and after the Famine years. Ringforts of this size are common across the Irish countryside, numbering in the tens of thousands nationally, yet each one that vanishes takes with it a small piece of the pattern of early settlement, land use, and daily life that they collectively preserve.