They are invisible at ground level, legible only from the air, and they enclose a central space barely large enough for a single room. No path leads in. No gap was ever cut through the ditches to allow entry, which raises a question that remains unanswered: what exactly were these rings meant to contain, or to keep out?

The site at Balheary was identified through aerial imagery, appearing clearly on Digital Globe coverage captured on 13 July 2013 and recorded by archaeologist Tom Condit. A ring-ditch, in general terms, is the crop-mark trace of a circular ditch that once surrounded a prehistoric burial mound or enclosure, the mound itself long since ploughed flat but the ditch below surviving as a soil anomaly that shows up in dry summers when crops above the disturbed earth ripen differently. What makes this example particularly interesting is its double structure. The inner ring-ditch measures roughly 7.2 metres in diameter, and sits concentrically within a larger outer ditch approximately 15.6 metres across, with a continuous fosse, that is, a flat-bottomed trench, running around it at a width of about 2 metres. The enclosed central area is only around 3.7 metres in internal diameter. A second ring-ditch lies roughly 48 metres to the northwest, suggesting this part of the Broadmeadow River valley was once a place of some significance, likely during the Bronze Age when such monuments were commonly raised over the dead.

The southern boundary of the field is formed by the Broadmeadow River, which gives some orientation for anyone trying to locate the general area, though the site itself sits within actively farmed land and there is nothing to see at surface level. The crop-mark is only likely to be legible from the air, and only under the right conditions of dry weather and cereal growth. For anyone with an interest in aerial archaeology or prehistoric landscape patterns, the broader Broadmeadow valley rewards attention on platforms such as Google Earth or the Irish National Monuments Service mapping viewer, where records compiled through projects like this one are publicly accessible.