That line indicated an enclosure, the catch-all term used in archaeological records for a roughly bounded area whose original purpose, age, and character remain unclear. It could have denoted a prehistoric settlement boundary, a medieval farmyard, or any number of enclosing structures that generations of farming quietly erased.

By the time anyone went to look more closely, in 1999, the site had been largely buried under rubble from field clearance and land reclamation. Whatever form the original enclosure had taken, the ground had absorbed it. The only surviving remnant was a narrow curving wall, and this appeared to be of modern construction rather than any ancient fabric. The site had been formally listed as an enclosure in both the Sites and Monuments Record in 1992 and the Record of Monuments and Places in 1996, giving it a degree of official recognition even as the physical evidence continued to diminish. The gap between what a map records and what survives on the ground is a familiar story in Irish archaeology, where centuries of agricultural improvement have quietly undone features that cartographers once thought worth marking.