No mound, no ridge, no visible trace at ground level. What survives is the memory of it, recorded on the 1840 edition of the Ordnance Survey six-inch map: a circular platform-type earthwork with trees planted inside it, a neat ring of growth that someone considered worth noting and a later cartographer considered worth dropping entirely from subsequent editions.

The earthwork sits on demesne land, meaning the private estate grounds that would historically have surrounded and supported a country house. The leading interpretation is that it was a tree-ring, a deliberate ornamental feature created as part of the landscaping around Bellgrove House. This kind of designed planting was a common enough element in the improvement of Irish estates during the eighteenth and nineteenth centuries, when landowners reshaped their grounds to reflect fashionable ideas about landscape aesthetics. A circular earthen platform would provide both a raised bed for specimen trees and a visual focal point in the middle distance. That by the time later Ordnance Survey editions were made it had disappeared from the record suggests the feature had either been cleared or had simply ceased to be distinct enough to map.