In a tillage field at Clomantagh in County Kilkenny, the buried outline of a ring-ditch emerged as a cropmark, the kind of faint discolouration in growing crops that appears when the soil beneath holds moisture differently because ancient features, ditches, pits, or banks, were cut or built there long ago. It was spotted on Google Earth imagery dated 28 June 2018 and reported by Simon Dowling.

The site is not an isolated curiosity. This ring-ditch sits conjoined with a second, and together they belong to a cluster that includes at least three further ring-ditches and a separate enclosure in the same area. The whole group is considered likely to form a barrow complex, a prehistoric funerary landscape in which circular earthworks, each typically enclosing a burial mound, were grouped together over generations. Barrow complexes of this kind are known across Ireland and Britain, often associated with the Bronze Age, though without excavation the precise date and function of the Clomantagh examples remain open questions. What the cropmark evidence suggests is that a significant concentration of monument-building once took place in this corner of Kilkenny, now worked farmland with nothing obvious on the surface to indicate what lies beneath.