Beneath what is now ordinary level pasture, periodically turned over by the plough, lies a ring-ditch, a circular or near-circular ditched feature of prehistoric origin, typically the remnant of a burial monument or a ritual enclosure whose earthen mound has long since been worn flat by centuries of agriculture. No ridge, no hollow, no crop mark visible to the naked eye on the ground gives it away. Its existence is known only because aerial photography caught it.

The site was identified from a monochrome aerial photograph, reference OS 2396/7, and confirmed as clearly visible on a colour photograph taken during fieldwork in August 1991. What aerial survey can detect, and ground-level inspection cannot, is the differential growth of crops or grass over buried features, where a filled-in ditch retains moisture differently from the surrounding soil and betrays its outline from above. The Lisduff ring-ditch does not sit in isolation. A second ring-ditch lies roughly 100 metres to the west-southwest, and an enclosure of a different type sits approximately 117 metres to the southwest. The clustering of such features across a relatively small area suggests that this corner of Tipperary was a place of some significance to the people who shaped the landscape here long before written record.

Because there is no surface trace, a visitor standing in the field would have no way of locating the monument or perceiving anything unusual about the ground underfoot. The interest lies less in what can be seen and more in what the aerial record quietly preserves, a geometry drawn in the soil that the landscape itself has forgotten.