Its boundary wall is wide, at three metres across, and still stands to a height of around 1.6 metres, built in the drystone manner familiar across the west of Ireland. Measuring just over 33 metres across its longest axis, the enclosure looks, on first inspection, like a relatively modern field boundary. But appearances are not straightforwardly reliable here.

What makes the site interesting is the suspicion that the present wall may be sitting on top of something considerably older. Drystone enclosures of this kind, when they turn out to overlie earlier structures, often mark the footprint of a ringfort or similar prehistoric or early medieval enclosure, the original earthen or stone boundary having been robbed out, built over, or simply incorporated into later agricultural use. The gap in the south-eastern arc of the wall is thought to be a modern intrusion rather than an original entrance, which leaves open the question of what an earlier entrance arrangement might have looked like. The site sits in Carrownacroagh, a townland in North Galway, and was catalogued as part of a systematic archaeological survey of the county.