That absence of an entrance is the first thing that strikes you about it, and it is not easily explained. Archaeologists recording the site found a roughly oval earthwork, measuring around 37 metres north to south and 25 metres east to west, with no discernible break in its perimeter and no trace of internal features. It simply sits there, sealed and silent.

The enclosure occupies the crest of a low natural platform, raised about 2.3 metres above the surrounding ground, with steep drops to the south and west. On the north and east sides, where the natural topography offers less dramatic protection, the builders added a shallow fosse, a defensive ditch, to reinforce the boundary. The bank itself is modest, between 0.8 and 1 metre high and roughly 2 metres wide, the kind of earthwork that could be missed on a grey day or dismissed as a natural rise. What it was used for remains open. Enclosures of this type in Ireland could serve as farmsteads, ceremonial spaces, or enclosures for livestock, and without excavation it is rarely possible to say which function applied. The deliberate use of the platform's natural edges, combined with the additional ditch work on the more exposed sides, suggests whoever built it understood the ground and used it carefully.