It exists, as far as ground-level observation is concerned, only as an absence, a feature that has sunk so completely back into the landscape that it leaves no visible trace for a visitor standing on the spot.

The enclosure was recorded on the Ordnance Survey's six-inch map of 1838, which means that nineteenth-century surveyors could still make out enough of its outline to commit it to paper. Circular enclosures of this kind are among the most common archaeological monument types in Ireland, typically taking the form of a raised earthen bank and internal ditch enclosing a domestic or ceremonial space, and dating anywhere from the Bronze Age through to the early medieval period. At Drim, whatever earthwork the OS surveyors traced has since levelled off entirely, leaving a site that is archaeologically attested but physically invisible. The gentle slope continues, the grass grows, and the thirty-metre circle persists only in the cartographic record and in the coordinates assigned to it.