On a hillside in County Waterford, a low grassy bank curves quietly through a field boundary, looking at first glance like ordinary farmland. Look more carefully at the map, however, and the geometry becomes suggestive: what is now half-absorbed into a field bank was once recorded as a complete circular enclosure, roughly fifty metres across, sitting towards the upper reaches of a north-west-facing slope at Powersknock.

The earliest cartographic evidence comes from the 1840 edition of the Ordnance Survey six-inch map, which captured the feature as a roughly circular embanked enclosure. An embanked enclosure is simply an area defined by a raised earthen bank rather than a wall or ditch, and in the Irish landscape such features can reflect a wide range of origins, from early medieval ringforts used as farmsteads to much earlier ceremonial or funerary sites. By the time the 1926 Ordnance Survey edition was produced, surveyors noted only a semicircular bank on an east-west axis, with a circumference of around forty-five metres, suggesting that the western arc of the original circle had by then been lost or substantially altered. Today, the eastern portion of the bank has been incorporated into a working field boundary, while a slight, grass-covered scarp still traces the perimeter from west around to the north. The interior dimensions recorded are approximately thirty-six metres east to west and twenty-nine metres north to south, implying that what survives is broadly consistent with the earlier circular form, even as the enclosure itself has gradually dissolved into the agricultural landscape around it.