It only came to light, so to speak, through aerial photography: a cropmark, the faint signature left in a field when buried features alter the way crops grow above them, denser or thinner, greener or yellower than the surrounding vegetation, readable from altitude in a way that is simply impossible from the ground.

The feature is a ring-ditch, a circular trench of prehistoric origin, most commonly associated with burial monuments. Such ditches are often all that survives of a round barrow, the original mound having been gradually levelled by centuries of ploughing, leaving only the encircling ditch as a trace in the subsoil. The Ballyragget example, measuring up to approximately fifteen metres in diameter, was identified from aerial photographs taken in 1971. What makes its location particularly interesting is that it does not stand alone. Three further ring-ditches have been recorded in the immediate vicinity, one lying roughly thirty-five metres to the south-west, another about sixty-five metres to the south, and a third approximately seventy metres to the north-east. This clustering suggests the area may once have formed part of a prehistoric funerary landscape, a grouping of monument types that is well attested across Ireland and Britain, where the dead were gathered in proximity over generations rather than interred in isolation.