Enclosure, Brierfield, Co. Galway
Co. Galway |
Enclosures
In the flat grassland of Brierfield in County Galway, a slight rise in the ground marks the approximate location of an enclosure that has, by now, entirely vanished from view.
There is nothing to see at the surface, no earthwork, no crop mark visible to the passing eye, no local landmark. What makes the site quietly puzzling is not its absence but its inconsistency: two editions of the Ordnance Survey six-inch map, produced decades apart, cannot agree on what shape it was.
The first edition of the OS six-inch map recorded a circular enclosure roughly 60 metres in diameter. By the time the third edition was published in 1931, the same feature had been mapped as D-shaped, and considerably larger, approximately 75 metres by 55 metres. Such enclosures, typically ringforts or the remains of early medieval farmsteads enclosed by an earthen bank and ditch, were common across Ireland, and their boundaries have often been obscured or destroyed by centuries of ploughing and land improvement. Whether the change between editions reflects genuine re-surveying, different cartographic conventions, or simply the difficulty of mapping a feature that was already degrading, is not recorded. The enclosure sits on a rise in otherwise level ground, which is precisely the kind of position favoured for such sites, offering modest drainage and a degree of visibility across the surrounding landscape.
No visible surface trace survives today, which means there is little for a visitor to observe on the ground. The value here is cartographic and historical rather than visual: a place where the map itself becomes the primary artefact, preserving the outline of something that the land no longer shows.