What makes this particular example worth a second look is the fact that it is not alone: another ringfort lies just 120 metres to the north-west, the two sites sitting in close enough proximity to suggest that whoever chose these slopes had a deliberate strategy in mind, whether that meant a family grouping, a cluster of related farmsteads, or some form of mutual oversight across the land.

A rath, as this type of monument is classified, is a roughly circular enclosure defined by one or more earthen banks and ditches, used during the early medieval period in Ireland primarily as a defended farmstead. This example at Ballyhenry is subcircular in plan, measuring 44 metres north to south and 40 metres east to west, and was originally ringed by two such banks with a fosse, a ditch, running between them. The inner bank still stands to around 0.8 metres and the fosse drops to the same depth, giving a reasonable impression of the original enclosure. The outer bank has fared less well, reduced to roughly 0.4 metres and levelled almost entirely on its western and south-eastern sides. There is a gap in the south, likely the original entrance, and the eastern half of the interior has been quarried at some point, disturbing whatever archaeology might have lain beneath the surface. The site was recorded as part of D. Lavelle's 1994 archaeological survey of the Ballinrobe district, which documented monuments across the Lough Mask and Lough Carra area.