This one, on a north-facing pasture slope in County Limerick, does almost the opposite. It exists, at least in the documentary record, as a faint circular cropmark caught on aerial film in 1986 and has since refused to show itself to later cameras entirely. By the time satellite imagery was taken between 2011 and 2013, and again in November 2018 via Google Earth, no trace of it was visible at all. A ring-barrow, to be clear, is a burial monument of prehistoric origin, typically a low earthen mound surrounded by a circular ditch or bank, and they are common enough across Ireland. What makes this example quietly compelling is precisely the uncertainty surrounding it, the way it hovers between confirmed monument and educated inference.

The site was identified during the Bruff aerial photographic survey in 1986, recorded in the survey image labelled Bruff 106(2), where it appeared as a small circular cropmark suggesting the presence of a possible ring-barrow. Cropmarks form when buried features affect the growth of surface vegetation above them, with ditches often producing lusher, greener growth and buried walls or compacted ground producing sparser growth, differences that become visible from altitude under the right conditions of drought and light. It sits 92 metres southeast of the Reask River, which forms the townland boundary with Brackyle, and 123 metres east of the boundary with Knockballyfookeen. That positioning places it within a notably dense archaeological landscape. A possible enclosure lies just 70 metres to the northeast, and roughly 247 metres to the southeast lie three further barrows, another enclosure, and an earthwork. More significantly, this monument is recorded as the northeasternmost in a local cluster of five ring-barrows, suggesting that whoever chose this slope for burial was doing so as part of a broader, deliberate pattern of landscape use. The record was compiled by Fiona Rooney and uploaded in July 2020.

Because the monument is not currently visible on the ground or on publicly available satellite imagery, there is nothing to see in the conventional sense. The pasture looks like pasture. What a visitor with an interest in archaeology can do, however, is appreciate the broader setting, the clustering of monuments across the surrounding townlands, and the way the Reask River functions as an ancient boundary marker as much as a geographical feature. If you are in the area during a dry summer, when cropmarks are most likely to reappear, the conditions that first revealed this site in 1986 could, in principle, reveal it again.