On a gravel ridge above the eastern side of the Nore river valley in County Kilkenny, a circular enclosure roughly fifty metres across lies beneath ordinary grassland, invisible to anyone standing on it. No earthwork rises from the surface, no obvious feature catches the eye. The enclosure exists, for practical purposes, only from the air.

The site was identified through a series of aerial photographs taken during the late 1960s and early 1970s, when the right combination of dry summer conditions and low-growing crops allowed the buried archaeology to express itself as a cropmark, a phenomenon in which variations in soil depth or moisture cause vegetation above buried features to grow at a slightly different rate or colour than the surrounding land, making ditches and walls legible from altitude even when they are imperceptible at ground level. Photographs taken on 17 July 1967, 17 July 1968, 16 July 1971, and 10 July 1973 each captured the same outline: a circular form defined by a wide fosse, a ditch, running from east through south to west. A strip of woodland plantation to the north encroaches into the northwestern sector of the enclosure. The site sits slightly below the ridge crest, in a position that would have offered fair to good views across the rolling grassland in most directions. A second enclosure lies approximately eighty metres to the southeast, suggesting this part of the valley may have supported a cluster of enclosed settlements or ceremonial spaces, though without excavation the date and function of either site remain open questions.