This nearly oval enclosure measures approximately 35 metres from northwest to southeast and 27 metres from northeast to southwest, protected by a sophisticated defensive system of three concentric earthworks: an inner bank, a fosse (defensive ditch), and an outer bank. The inner bank, reaching heights of 2.5 metres in places, appears to have been reinforced with internal stone revetting, whilst the outer bank shows evidence of stone facing on both its interior and exterior surfaces; a testament to the considerable effort invested in its construction.

A gap in the southeastern section of both banks likely marks the original entrance to this fortified settlement. The interior of the ringfort follows the natural slope of the hill, descending from northeast to southwest, and shows clear signs of cultivation, suggesting this wasn’t merely a defensive structure but a working farmstead. These ringforts, known locally as raths, were typically built between the early medieval period and the 17th century, serving as fortified homesteads for farming families of some social standing.

Today, the site lies somewhat forgotten in poor, marshy land, heavily overgrown and regularly disturbed by grazing animals. Despite its current state, the ringfort at Glenkeeragh remains an evocative reminder of Ireland’s medieval landscape, when thousands of these circular earthworks dotted the countryside, each one a self-contained world of family, livestock, and agricultural life protected behind substantial earthen ramparts.