What betrayed it was not a standing wall or an earthen bank but a cropmark, the kind of subtle discolouration in ripening crops that reveals buried archaeology from the air. When soil is disturbed by ancient ditches and then filled in again over centuries, the ground above it retains moisture differently, causing the crops above to grow at a slightly different rate. On a satellite image taken in July 2018, that difference was enough to outline what appears to be a sub-rectangular enclosure with rounded corners, measuring roughly 73 metres on its north-west to south-east axis and about 58 metres across.

The site was identified and reported by Simon Dowling, working from Google Earth imagery. The enclosure is not fully legible even from the air: only the eastern portion shows clearly, with the rest presumed to continue westward beyond a townland boundary that cuts across the site in a north-west to south-east line. A townland boundary is an ancient territorial division, often following earlier landscape features, and its alignment here may be no coincidence. Beyond the inner ditch, there appears to be an outer fosse, a secondary defensive or enclosing ditch, running parallel at a distance of between 6 and 13 metres. Double-ditched enclosures of this kind are known from Irish prehistory and the early medieval period, though without excavation it is not possible to assign a date or purpose to this particular example with any confidence.