At Ballyroe in County Cork, a south-facing pastoral slope holds no visible trace of a ringfort that was once substantial enough to be mapped in detail. The 1842 Ordnance Survey six-inch map recorded it as a circular enclosure roughly 35 metres across from east to west, its outline already nicked at the north-north-west by a field boundary running north-east to south-west. By the time anyone thought to document it properly, the earthwork had been levelled entirely.

Ringforts, also known as raths, were enclosed farmsteads typically built between the early medieval period and around the twelfth century. They usually consisted of one or more earthen banks surrounding a circular area used for domestic life and the protection of livestock. The Ballyroe example appears to have been one of two on the same farm. Writing in 1940, a researcher named Power noted that on Smith's farm there had been two lioses, the Irish term for such enclosures, and that both had been destroyed. That brief record is now the only testimony to either of them. The field fence that clipped the enclosure's northern arc on the nineteenth-century map was likely part of the same agricultural reshaping that eventually erased both sites altogether.

There is nothing to see at ground level today. The site sits in ordinary pasture, unremarkable to any eye that does not know what the old maps once showed there. Its interest lies precisely in that absence, in the way a single line from a 1940 publication and a ghost outline on a Victorian survey sheet are all that remain of two places where people once lived.