This ancient earthwork at Lismakeeve measures roughly 23 metres from northeast to southwest and 26 metres from northwest to southeast, defined by an impressive double-banked defensive system. The site’s most striking feature is its wide, flat-bottomed fosse; a defensive ditch some 5 metres across that runs between an inner and outer bank, creating a formidable barrier that would have deterred any unwanted visitors in its heyday.

The outer bank, measuring 3.5 metres wide and standing up to 1.5 metres high on its exterior face, remains particularly well-preserved along the southern arc of the enclosure, where it now serves the more mundane purpose of a field boundary. The inner bank, though more modest at 2 metres wide, would have presented an additional obstacle to anyone attempting to breach the defences. An entrance gap, 7 metres wide, faces east-northeast, providing the only formal access point to the interior. Time hasn’t been entirely kind to the structure; the southwest section of the inner bank has been destroyed, though enough remains to give a clear sense of the site’s original form.

What makes this location particularly intriguing is its proximity to another possible ringfort site, catalogued as TN034-060, also positioned to the southeast. This clustering of defensive structures hints at a landscape that was once carefully controlled and defended, perhaps marking territorial boundaries or protecting important settlements during Ireland’s early medieval period. The square shape of the Lismakeeve enclosure is somewhat unusual, as most Irish ringforts tend to be circular, suggesting this site may have served a specific purpose or belonged to a particular tradition of fort-building that differed from the norm.