There is nothing to see at ground level, no earthwork, no visible bank or ditch, only grass and soil. The site reveals itself only from the air, and only under the right conditions, when a dry summer causes buried features to draw moisture differently from the surrounding earth, leaving ghost-like marks on the surface vegetation. These are cropmarks, and they are one of the quieter tools of landscape archaeology, capable of exposing structures that have otherwise vanished entirely.

What the aerial photograph taken in July 1989 shows is the outline of two concentric fosses, that is, ditches, forming a roughly circular enclosure approximately thirty metres in diameter. Concentric enclosures of this kind are associated with a range of periods and purposes in Irish archaeology, from prehistoric ceremonial sites to early medieval ringforts, and without excavation it is impossible to say with certainty what this one was. What makes this particular cropmark slightly unusual is a deviation in its otherwise regular geometry: the outer fosse does not follow a clean circle but bulges outward to the south-east, a quirk that hints at some deliberate feature of the original design, perhaps an entrance arrangement or an annexe, though again the evidence does not go further than the shape itself. A north-to-south field fence also cuts across the western half of the site, a reminder of how later agricultural boundaries have quietly overwritten much older ones across the Irish countryside.