Cartographers recorded it as a circular earthwork in 1767, an oval earthwork in 1808, and by 1837 the Ordnance Survey had settled on calling it a tree-ring, which is precisely what it appears to be: a natural ridge or rise that was deliberately planted with trees, most likely to be seen and admired rather than to serve any agricultural purpose. No earthwork survives at the surface today, and what looked like a formal geometric feature on earlier maps has softened into something harder to read on the ground.

The site appears on the Longford Estate Map of 1767, which places it within the designed landscape surrounding Craddockstown House, a property that lies roughly 190 metres to the north-west. Tree-rings of this kind were a common conceit of eighteenth-century estate design in Ireland, functioning as eye-catchers or focal points when viewed from a house or its gardens, their circular or oval outlines giving a distant field the appearance of something ancient and considered. A survey carried out in 1980 described the rise as natural in origin, planted with trees at some point in the past, which suggests the designers worked with the existing topography rather than creating an earthwork from scratch. The northern side of the ridge has been further altered by quarrying, leaving a large shallow depression; the slight mound visible at the southern end of that depression is most likely spoil thrown up during the quarrying rather than any original feature.

Today the depression and the ridge immediately south of it are overgrown with trees, and aerial photography shows the wider site functioning as a modern farmyard. The geometry that once made this a legible landscape ornament has largely dissolved into ordinary countryside, leaving something that rewards attention precisely because it looks, at first glance, like nothing in particular.