During a dry spell in late June 2018, the cropmark gave the feature away: a near-perfect circle roughly ten metres across, its outline traced by a fosse, the term for a man-made ditch, cut into the earth long ago. Where the soil above that ditch retains slightly more moisture, the crop grows differently, and on a satellite image taken at exactly the right moment, the ring resolves itself out of the green and gold patchwork below.

This kind of feature is known as a ring-ditch, and such sites are generally understood to have funerary associations, often the surviving trace of a burial mound whose earthen body has been ploughed flat over centuries of agriculture. The ditch that once surrounded a barrow or cairn can persist in the subsoil long after everything above ground has vanished, and it is only through aerial photography or satellite imagery that these erased monuments re-emerge. What makes the Clomantagh example particularly interesting is its company: a separate enclosure and another ring-ditch sit roughly thirty metres to the north-north-west, suggesting this corner of the parish may have held a cluster of related monuments, perhaps a small prehistoric funerary landscape, now reduced to faint geometry beneath the crops.