But the circular arrangement is not accidental. What looks like a windbreak or a quirk of agricultural planting is in fact the outline of an early medieval ringfort, its banks still holding their shape after more than a thousand years of farming around and, increasingly, over them.

Ringforts, known in Irish as raths, were the most common form of rural settlement in early medieval Ireland, typically dating from roughly the fifth to the twelfth centuries. They served as enclosed farmsteads, with an earthen bank and external ditch protecting a household and its livestock. The example at Ballynabanoge follows this pattern closely. Recorded in the Sites and Monuments Record, it is described as a banked circular enclosure with an external ditch, measuring approximately 33 metres east to west and 31 metres north to south. It sits in pasture roughly 20 metres south-east of the townland boundary with Dohora, a location that places it neatly at the edge of one ancient territorial unit and close to another. The monument was already being mapped in the late nineteenth century, appearing on the Ordnance Survey Ireland 25-inch edition of 1897 as a roughly circular earthwork, and it has remained identifiable on aerial imagery taken between 2005 and 2018.

The site is on private farmland, so access would require the landowner's permission. That said, the tree cover that defines the fort's perimeter makes it unusually legible from a distance, and aerial images, including those available through Google Earth using an orthoimage dated 28 June 2018, give a clear sense of its form. The circular crown of vegetation, sitting slightly raised against the surrounding pasture, is the thing to look for. The external ditch, while not dramatic, may be traceable around the bank on closer inspection. As with most raths in agricultural use, the interior has likely been modified over the centuries, but the overall shape has proved remarkably persistent.