On a broad, low plateau in Graigavalla, County Waterford, a shallow depression in the grass is just about all that remains of what was once a roughly circular enclosure. It is the kind of feature that most walkers would step across without a second thought, yet the ground itself preserves the faint geometry of something deliberate: a D-shaped area measuring approximately 34 metres north to south and 26 metres east to west, its edges defined not by a wall or bank in the conventional sense but by a scarp, a subtle step in the earth where the interior sits slightly lower than the surrounding land.

When the first edition of the Ordnance Survey six-inch map was drawn in 1840, the feature was still legible enough to be recorded, marked faintly as a circular enclosure with a diameter of around 40 metres. Even then, a north-to-south field bank had already cut into its eastern side, clipping the outline and giving it the truncated D-shape visible today. That bank, almost certainly a later agricultural boundary, is the reason the enclosure is no longer intact. The scarp itself survives best along the western and northern arc, where it reaches a width of around nine metres and a height of roughly 0.9 metres. A scarp of this kind typically marks the edge of a raised or embanked area, and enclosures of this general form in Ireland are often associated with early settlement or ceremonial use, though without excavation the date and function of this particular example remain open questions. Adding to the interest is a possible standing stone recorded about 12 metres to the west, a solitary upright whose proximity to the enclosure may or may not be coincidental.