Roughly circular, measuring about fourteen metres east to west and thirteen metres north to south, it is defined by an earthen bank that still stands around 1.2 metres high on the outside and just under a metre wide. At the south-east, the bank gives way to a natural or cut scarp that completes the circle. A number of tree stumps remain visible along the line of the bank itself, the clearest clue to what this feature probably once was.

A tree-ring, in the context of demesne landscaping, is a circular plantation of trees, often used as an ornamental or sheltering feature within the designed grounds of a Georgian or Victorian estate. They were a relatively common device in Irish estate management, planted to frame views, shelter livestock, or simply add structure to open parkland. What makes this particular example worth pausing over is the combination of its siting and its form. The hillock it occupies is steep-sided, giving the enclosure an unexpectedly prominent position in the surrounding grassland, and the earthen bank is substantial enough that surveyors who recorded it noted the morphology and siting as striking. That hedged phrasing, "probably a tree-ring", reflects genuine uncertainty: the bank's scale and the deliberate choice of elevated ground leave open the possibility that something older underlies or informs the feature, even if no firm alternative identification has been made.