On a south-west-facing slope in Bleantasour, a broad circle of grass-covered ground quietly interrupts the Waterford countryside. It measures some 36 metres across, and what defines it is an earthen bank, now deeply overgrown, that once formed the perimeter of a ringfort. A ringfort is a roughly circular enclosure, typically from the early medieval period, built to demarcate a farmstead and offer a degree of protection for the household and livestock within. What makes this one quietly interesting is the way the landscape has absorbed it: the bank on the north-west to north-east arc has been incorporated into a working stone field boundary, so the ancient and the agricultural have become, over centuries, effectively the same structure.

The earthen bank survives to a modest but legible height, standing around 0.9 metres on the interior face and 1.3 metres on the exterior at the western side, where it is widest at approximately 4.5 metres across. Beyond the bank on the eastern to south-western arc lies an outer fosse, which is a defensive ditch, here about 2 metres wide at the base and still some 0.3 metres deep despite the softening effect of time and vegetation. The entrance, located on the eastern side, has at some point been widened, most likely to accommodate later agricultural use, which is a common fate for ringfort entrances across Ireland. That widening is itself a kind of record, a trace of the decisions made by later farmers who found the old opening too narrow for their purposes.