What gives it an quietly layered quality is the way later agricultural life has grown straight over it: a field wall runs across the south-eastern to south-western arc of the bank, as though a farmer at some point simply treated the ancient boundary as a convenient foundation, folding the prehistoric into the practical without much ceremony.

The rath, a type of ringfort built from a bank of earth and stone rather than from timber palisades or mortared walls, measures just under 39 metres in diameter and its enclosing bank is roughly 5.7 metres wide at its base. These dimensions place it comfortably within the range of the thousands of similar enclosures once scattered across Ireland, most of them dating to the early medieval period and thought to have served as enclosed farmsteads for a single family or small social unit. The bank at Lissindragan stands only 0.4 metres high on the interior and 1.1 metres on the exterior, suggesting considerable silting and settling over the centuries, though the structure is recorded as being in fair condition. A growth of hawthorn trees has colonised the bank, which is characteristic of old earthworks in pastoral landscapes; hawthorn was traditionally associated with these sites in Irish folklore, sometimes enough to discourage farmers from clearing it. The site was noted by McCaffrey in 1952.