It appears on the Ordnance Survey's first edition of 1836 as a circular ring of trees roughly 45 metres in diameter, but by the time later editions were produced, the marking was gone entirely. Today, nothing is visible at ground level.

What that tree-ring almost certainly traces is a rath, the Irish term for a ringfort, a type of enclosed farmstead built from the early medieval period onward, typically consisting of a circular earthen bank and ditch enclosing a domestic space. Thousands survive across Ireland in various states of preservation, but this one appears to have been absorbed into the designed landscape of a landed estate. Bellamont House, the Palladian mansion nearby, was the kind of property where the grounds were shaped and planted with deliberate aesthetic intention, and it seems the ancient enclosure was repurposed as a decorative feature, its circular form perhaps retained as an ornamental grove while its original character as an archaeological monument was quietly forgotten. The 1836 OS map, made at a moment when such features were still being recorded in the field before later development obscured them, preserves the only clear cartographic evidence that anything was there at all.