That, in its own way, is the point. Somewhere beneath a gently sloping, south-facing pasture in north Cork, the earthworks of an early medieval ringfort have been completely levelled, leaving no visible trace on the surface. A ringfort, or rath, was a circular enclosure defined by one or more earthen banks and ditches, used as a farmstead and defended homestead during the early medieval period in Ireland. Thousands were once scattered across the Irish countryside; many, like this one, were quietly erased by generations of agricultural improvement.

The site does have a paper trail, even if the ground holds nothing. The Ordnance Survey's six-inch map of 1842 recorded it clearly, drawn as a hachured circular enclosure approximately 25 metres in diameter, the cartographers' method of indicating a raised earthwork. Nearly a century later, a researcher named Bowman noted in 1934 that the fort had already been levelled by that point, describing it as a single-ramparted enclosure roughly 29 yards across, situated on land then belonging to a M. Duggan. The slight discrepancy between the two measurements is the kind of detail that reminds you these records were made by different people, at different times, with different tools. What both accounts agree on is the loss: by the mid-twentieth century, the rath existed only in documents.