In the townland of Airgloony in County Galway, the first edition of the Ordnance Survey six-inch map recorded a circular enclosure roughly thirty metres across, drawn with the quiet confidence of a surveyor who could still see it. Today, the ground has been turned over so many times by tillage that no visible surface trace of the enclosure remains. What was once a rath, a type of earthen ringfort used in early medieval Ireland as a farmstead enclosed by one or more banks and ditches, has been effectively erased from the landscape, surviving now only as a notation on a nineteenth-century map.

Ringforts are among the most common archaeological monument types in Ireland, with tens of thousands recorded across the country, yet individual examples like this one are easily lost to agricultural pressure over the centuries. The Airgloony rath is not entirely alone in its anonymity, however. A comparable monument sits approximately one hundred metres to the south-west, suggesting that this corner of north Galway was once settled with enough density to support at least two such enclosures in close proximity. Whether they were contemporary, or represent different phases of occupation across a longer span of time, is not something the surviving record can say.