The enclosure measures thirty metres across in both directions, defined by an earthen bank that rises only about sixty centimetres above the surrounding ground. On its eastern side, a gap three metres wide marks what is believed to be an original entrance, oriented to catch the morning light in the way that was common practice among those who built such structures.

This is a rath, the Irish term for a ringfort, a type of enclosed farmstead typically dating to the early medieval period, roughly 500 to 1200 AD, when such enclosures served as the basic unit of rural settlement across Ireland. Thousands survive in various states of preservation, though many have been lost to agriculture or development over the centuries. What makes this particular example quietly notable is its relationship to its landscape: it sits roughly 150 metres north of a second ringfort, suggesting that the two enclosures may have functioned in some proximity to one another, perhaps as adjacent family farmsteads or as part of a small local community. The site was recorded in a 1994 archaeological survey of the Ballinrobe district compiled by D. Lavelle, covering the wider area around Lough Mask and Lough Carra, two lakes that dominate this part of south Mayo.