During dry summers, differences in soil moisture cause buried features to affect how crops grow above them, producing faint but readable marks at altitude. It was precisely this phenomenon that revealed the outline of a circular enclosure here, its fosse, meaning a surrounding ditch, showing up as a cropmark in aerial photography taken in July 1989.

The enclosure measures approximately thirty metres in diameter and appears to have had its entrance on the eastern side, a common orientation in Irish prehistoric and early medieval enclosures, possibly aligned with the rising sun. The site does not sit in isolation. It overlaps with the north-eastern quadrant of a second, neighbouring enclosure, suggesting a relationship between the two features, whether one was built beside or partially over the other, and both are connected to a field system extending to the north and south-east. That network of ancient boundaries hints at a landscape that was once carefully organised and managed, even if the people who laid it out left no written record of themselves.