The one at Clenor in north Cork does almost the opposite. Ploughed flat over generations of tillage farming, it survives now primarily as a memory in the landscape, legible only if you know what to look for and where.

A ringfort, sometimes called a rath, is a roughly circular enclosure defined by one or more earthen banks and ditches, typically dating to the early medieval period and used as a defended farmstead. At Clenor, the physical bank is largely gone, but the site left its impression on the Ordnance Survey maps of 1842, 1905, and 1937, each of which recorded the same U-shaped curve running northeast to southwest, with a projection of around sixty metres to the southeast. That consistent outline across nearly a century of mapping suggests the enclosure was substantially intact well into the twentieth century before field consolidation removed it. Local tradition also placed a ringfort here, lending the cartographic evidence some weight. What remains today is a section of road boundary fence, curving over roughly sixteen metres, that is noticeably more substantial than the fencing on either side of it, standing about two metres on its outer face against a much lower interior height of around half a metre. That discrepancy, modest as it sounds, almost certainly reflects the buried remnant of the original bank, still holding its ground beneath the surface even as the fields above it have long since been turned over to crops on a gentle south-facing slope.