It takes an aerial camera, and the particular alchemy of a dry summer drawing parched lines through a crop, to reveal it at all. What emerges in photographs taken in 2006 is a cropmark, the faint signature of a circular enclosure roughly fifteen metres in diameter, its outline traced by a single fosse, a filled-in ditch whose disturbed soil holds moisture differently from the surrounding earth, and so grows the crop above it at a slightly different rate. That difference, barely perceptible at ground level, reads clearly from altitude as a ghostly ring pressed into the field.

Cropmarks of this kind are one of the quieter ways that Irish archaeology announces itself. A fosse-defined enclosure of this scale could belong to any number of periods, from the Iron Age through to the early medieval, and without excavation it is impossible to say more. What the aerial record does confirm is that this enclosure does not sit alone in the landscape. Two further enclosures lie roughly a hundred and fifty metres to the west, suggesting that this flat, unremarkable-looking stretch of Wexford farmland was, at some point, a place where people repeatedly chose to mark out and define space. Whether those enclosures were related in function or in time is unknown, but their clustering is itself a detail worth sitting with.