This one in Glantane, in north Cork, offers nothing so tangible. The ringfort here has been levelled entirely, leaving no visible surface trace in the pasture where it once stood. What remains is a field boundary along its northern edge, indistinguishable now from the boundaries of neighbouring fields, though its line almost certainly follows the arc of the old enclosure.

A ringfort, sometimes called a rath, is a roughly circular enclosure defined by one or more earthen banks and ditches, typically dating from the early medieval period in Ireland, roughly 500 to 1200 AD, and most often associated with a single farmstead and its livestock. The Glantane example was a single-ramparted fort, the most common variety, and was noted on Ordnance Survey six-inch maps from as early as 1842, where it appeared as a hachured subcircular enclosure, with hachuring being the cartographic convention used to indicate an earthen bank or raised feature. It was still being mapped in 1904 and again in 1938, suggesting it survived in some form well into the twentieth century. By the time the site was formally assessed, however, it had been levelled, its northern side already absorbed into the field boundary system. A record by Bowman in 1934 placed this fort among two similarly sized, single-ramparted enclosures on land belonging to a J. Sheehan, with diameters of approximately thirty-one and thirty-four yards respectively. Whether the second fort fared any better is not clear.

There is little to see on the ground today, and the site sits in private farmland on a north-facing slope. The field boundary to the north is the only physical remnant, and even that is circumstantial. The interest here lies less in what survives than in the sequence of its disappearance, traceable across nearly a century of maps before the enclosure finally dissolved into the agricultural landscape around it.