The enclosure at Liscullaun measures roughly 28 metres east to west and 18 metres north to south, making it a modest but coherent ring of ancient intention. What makes it quietly odd is how much of it has already been swallowed. Beech and thorn trees have rooted themselves along the top of the enclosing bank, and where storms have come through, some have been uprooted, pulling the already low earthwork further apart. Briars have colonised the western interior and are steadily advancing inward. The monument is disappearing into itself by degrees.

The place-name Liscullaun points to origins as a lis, the Irish term for a roughly circular earthen enclosure, typically associated with early medieval settlement and farmsteads, often referred to in English as a ringfort. The site appears by that name on the Ordnance Survey 25-inch map and on the 1921 edition of the six-inch map, which at least tells us it was recognisable and documented in the nineteenth and early twentieth centuries. What survives today is an intermittent, low-profile bank, nowhere higher than about half a metre internally, with a scarp, a slope cut into the natural ground rather than built up, along the northern arc. A shallow fosse, the ditch that typically runs outside such enclosures, is only traceable along the south-southeastern stretch, with a depth of around 15 centimetres. Much of the western and south-southwestern perimeter has been obscured entirely by vegetation. There is a possible entrance on the eastern side, where the bank simply stops and the interior ground meets the outer surface at the same level.

The enclosure is set within ordinary farmland, and the vegetation that has grown over and through it means that reading the full circuit on the ground requires some patience. The eastern approach, where the probable entrance lies, gives the clearest sense of the monument's oval shape and the slight downward tilt of the interior toward the west. The fosse is most legible along the southern arc, where the bank and ditch relationship can still be traced in cross-section, though both are shallow enough to be easily overlooked without prior knowledge of what to expect.