In the summer of 1989, an aerial survey caught it as a cropmark, the kind of ghostly impression left when buried ditches or banks cause the vegetation above them to grow differently, greener or more stressed depending on the season, creating outlines that a person standing in the field would never notice. What makes this particular site quietly unusual is not just the enclosure itself, but what appears to extend from it.

Alongside the circular feature, two linear and parallel ditches, set closely together and running for around sixty metres, reach westwards from the enclosure toward a field boundary. This double-fosse arrangement is an uncommon detail; a single enclosing ditch, or fosse, is the standard expectation around a ringfort or similar early medieval enclosure, so paired parallel ditches projecting outward suggest something more complex, perhaps an entrance passage, a drove road, or a now-vanished annex. The site does not exist in isolation either. Another circular enclosure sits roughly twenty metres to the north-east, and a ring-ditch, a type of circular earthwork often associated with prehistoric funerary or ritual use, lies about ten metres to the south-west. Together they hint at a small cluster of activity across what is now ordinary farmland in North Cork.