A ring-ditch of roughly ten metres in diameter, its defining fosse, meaning the encircling ditch cut into the earth, appears to run as a continuous circuit rather than breaking or fading at any point. That completeness is part of what makes it worth noting. Ring-ditches of this kind are generally understood to be the traces of prehistoric burial or ceremonial activity, the ghostly outlines of monuments whose above-ground elements have long since been ploughed or eroded away.

What makes the Linziestown example particularly interesting is its relationship with a neighbouring feature. Only about ten metres to the south lies the outer fosse of a rath, the bank-and-ditch enclosure characteristic of early medieval rural settlement in Ireland. The proximity of the two is unlikely to be coincidental, though whether the builders of the rath were aware of the earlier ring-ditch, or were deliberately placing their homestead near a pre-existing monument, is something the ground alone cannot answer. The site was identified through aerial photography, which remains one of the primary tools for detecting features like this, where differences in crop growth or soil moisture betray the presence of buried ditches that leave no visible mark on the surface.