The site only reveals itself from the air, where the buried features show up as cropmarks, the faint differential in how grass or grain grows over disturbed or compacted soil betraying the outline of something much older beneath. What the aerial photographs show is a bivallate enclosure, meaning a circular enclosure defined by two concentric banks or ditches, with an outer ring roughly sixty metres across and an inner ring of around thirty metres. At ground level, there is simply nothing to see.

The place carries a local name worth noting: the area has a tradition of being called a "Raheen", a diminutive of the Irish "ráth", the word for a roughly circular earthwork enclosure typically associated with early medieval settlement in Ireland. Raths were the farmsteads of their age, the enclosed spaces within which a family and their livestock would have lived, surrounded by an earthen bank and ditch that provided both a degree of security and a visible marker of status. The Raheen tradition at Ballybrew suggests that some memory of the site persisted in local knowledge long after the physical structure had ceased to be visible, even if the precise nature of what lay beneath was forgotten. Whether the enclosure here dates to the early medieval period or to an earlier prehistoric phase is not recorded; the cropmark evidence alone does not settle the question.

There is little for a visitor to observe on the ground, and the site is not marked or accessible in any formal sense. Its interest lies less in what can be seen and more in what the combination of aerial photography and local placename tradition together imply: that a community once lived within those two rings, and that the land, in its own way, has not entirely let go of that fact.