It was recorded on the first edition of the Ordnance Survey six-inch map as a small circular earthwork, the kind of deliberate planting arrangement known as a tree-ring, in which trees were set out in a ring formation as part of the designed landscape of a country estate. No visible trace of it survives at ground level today.

Tree-rings were a common enough feature of demesne landscaping in eighteenth and nineteenth century Ireland, used by landowners to impose a sense of order, ornament, and controlled nature onto their estates. They could serve as visual anchors in parkland, frame views, or simply signal the cultivated ambitions of the household. The Dunmore example, modest at around ten metres in diameter, would have been a small gesture of that kind. Its presence on the first edition OS map, surveyed in the mid-nineteenth century, tells us it was considered a notable enough feature at that time to record, even if the trees themselves or the earthwork that supported them have since been absorbed back into the surrounding fields.