The enclosure measures roughly 44 metres across internally, with an overall diameter of around 64 metres, and is defined by a fosse, that is, a broad surrounding ditch, rather than an upstanding bank. That combination of scale and form is typical of early medieval ringforts, the enclosed farmsteads that once dotted the Irish countryside in their thousands, though many have been lost to agriculture or development over the centuries. This one survives, at least in outline.

The site sits in grassland with a river running roughly east to west about 35 metres to the south, and a stream passing some 50 metres to the west, a positioning that would have made practical sense for any settlement needing reliable water access. By the time the Ordnance Survey revised its six-inch mapping around 1900, a field boundary was already cutting north to south along the inner edge of the enclosure, running from the north-east to the south-east arc of the interior. That boundary line suggests the site had long since ceased to be recognised as anything requiring protection, its space simply absorbed into the working agricultural geometry of the townland.

The enclosure is now heavily overgrown, which makes its interior difficult to read on the ground, but the fosse can still be traced, and the rising canopy of self-seeded trees gives the site a slightly enclosed, removed quality that distinguishes it from the surrounding fields. The two watercourses nearby remain useful landmarks for anyone trying to orient themselves within the wider townland of Kilmacahill.