During ploughing, the landowner has repeatedly turned up considerable quantities of cut stone, suggesting something more deliberate lies beneath the surface than the land's current agricultural use would imply. Running across the field in a northeast-to-southwest direction is a series of gullies, each reaching up to eight metres in width and roughly eight-tenths of a metre in depth. What these earthworks represent, whether defensive boundaries, drainage features, or the remnants of an earlier structure, has not been conclusively established.

The site sits immediately east of what was once the Dublin-Knocksedan-Grace Dieu Coach Road, a route now known as New Dairy Lane. Coach roads of this period served as the principal arteries connecting Dublin to the surrounding countryside, and their edges were often marked by estate features, boundary works, or infrastructure associated with large houses. Rathbeale Hall itself has a long history in the north Dublin landscape. Woven into the local memory of the area is a tradition that King James II passed this way en route to the Battle of the Boyne in 1690, the engagement at which his forces were defeated by those of William of Orange, effectively ending his claim to the throne. Whether the earthworks have any connection to that route or that moment in history is unrecorded, but the tradition keeps the site tethered to one of the more consequential episodes in Irish and British history.

The field lies along New Dairy Lane and is under tillage and pasture, so access is limited to what can be observed from the road or lane edge. The gullies are most likely visible as surface undulations in the field, particularly in low winter light or when the ground is bare after ploughing. The cut stone exposed during agricultural work is the more tangible evidence of the site's depth, though it is not on permanent display. Anyone with a particular interest in the area's early road network or in the landscape surrounding Rathbeale Hall may find it worth a slow drive along New Dairy Lane with the field boundary in view.