In the townland of Eoghanacht in County Galway, a roughly oval enclosure, approximately 42 metres east to west and 34 metres north to south, is visible in aerial imagery of the area but leaves little trace at ground level. The surrounding landscape of exposed limestone pavement and rough pasture is characteristic of this part of Connacht, where thin soils and centuries of grazing have left the land looking stripped back and ancient.

Enclosures of this general type are common across Ireland and were used across a very long span of time, from the early medieval period and sometimes earlier, serving variously as the boundaries of farmsteads, ecclesiastical sites, or places of social gathering. Without excavation it is impossible to say what this particular feature enclosed or when it was in use. It was identified and reported by Ros Ó Maoldúin, and its form is known primarily through aerial photography rather than any ground survey. That it has been noted at all is partly a consequence of how well the bare limestone terrain preserves subtle earthworks that would disappear under deeper soils elsewhere.