The ringfort, known in Irish archaeology as a rath, measures 38 metres in diameter and retains its inner bank and intervening fosse, the shallow ditch that once reinforced whatever boundary the bank itself provided. Slight traces of an outer bank survive on the southern side, suggesting this was once a more elaborate enclosure than it now appears. A gap roughly four metres wide on the eastern side may well be the original entrance.

Raths are among the most common archaeological monuments in Ireland, typically dating to the early medieval period, roughly the fifth to twelfth centuries, and thought to have served as enclosed farmsteads for individual families or small communities. The earthen banks and ditches would have provided both a physical boundary and a degree of security for livestock. What makes this particular example quietly interesting is its setting within the former demesne of Clonbrock, an estate associated with the Dillon family, whose landscaping and land management would have shaped the ground around it for generations. The survival of the rath within that later designed landscape, even in fair condition, suggests it was either too substantial to remove or simply left undisturbed as the parkland grew around it. A separate enclosure lies approximately 300 metres to the south-west, hinting that this corner of north Galway was once more densely settled than the present pasture implies.