When the first edition of the Ordnance Survey six-inch map was completed in 1841, the surveyors recorded an oval enclosure here, roughly 30 metres north to south and 25 metres east to west, bounded by a bank and labelled in gothic script as 'Lisgortarughel'. Gothic script on those early OS maps was the convention used to mark antiquities, which tells us the surveyors already understood they were recording something old rather than a working agricultural boundary.

The name 'Lisgortarughel' is itself revealing. The element 'lis' refers to a ringfort, the type of roughly circular or oval enclosure, typically defined by an earthen bank and ditch, that was the standard farmstead of early medieval Ireland. Thousands survive across the country in varying states of preservation, but many more have been levelled by centuries of ploughing, drainage, and land improvement. Later editions of the Ordnance Survey map continued to mark this spot, though with the telling addition of '(site of)', an acknowledgement that the physical structure had already disappeared from view. Today there is no visible surface trace, just ordinary grazing land where the bank and whatever it once enclosed have been absorbed entirely into the field.