This one at Cronecribbin in County Wexford was essentially invisible until satellite imagery gave it away. What marks the site today is not a visible mound or a heritage sign but a parch mark, the faint discolouration that appears in dry grass above buried earthworks when the soil moisture above a buried feature differs from the surrounding ground. Seen from above on a July day in 2018, the outline of a subcircular enclosure emerged clearly enough to document.

The enclosure is a rath, the commonest form of Irish ringfort, typically a circular or near-circular area defined by an earthen bank and one or more surrounding ditches, known as fosses, used as a defended farmstead during the early medieval period, roughly the fifth to twelfth centuries. At Cronecribbin, the interior measures approximately forty metres on its longer axis and twenty-eight metres across, with the full extent of the feature, bank and outer fosse included, stretching to around sixty-five metres by forty-five metres. The site sits on a low north-south ridge, a position that would have offered modest but practical elevation. The parch marks of the earthen bank and its inner and outer fosses are only traceable along the northeastern to southern to north-northwestern arc of the enclosure, suggesting that either differential preservation or soil conditions limit what the aerial view can resolve. The site was first reported by Simon Dowling, and without that initial observation it might have continued to go unrecorded.