It does not survive as a bank or ditch you could walk around; instead, it exists only as a cropmark, a ghostly outline visible from the air when growing crops betray buried features below by ripening at slightly different rates. The technique used to detect it, part of the Cork Archaeological Survey Air Photography programme, has a particular talent for finding things that tillage and time have otherwise swallowed whole.

What the aerial photographs reveal is a univallate subcircular enclosure, meaning a roughly circular enclosure defined by a single bank or ditch, somewhere between fifty and fifty-five metres in diameter. Enclosures of this general type are among the most common archaeological features in the Irish landscape, and are broadly associated with the early medieval period, though without excavation it is impossible to assign a precise date to any individual example. What makes this one notable is not complexity but circumstance: a farm trackway has cut directly through its south-eastern arc, removing a portion of whatever survives below ground and leaving the circle permanently incomplete. The enclosure sits on a gentle south-facing slope, the kind of orientation that would have made it an attractive spot for settlement, catching winter light and offering reasonable drainage for a farmstead that may have stood here over a thousand years ago.