The enclosure is small, perhaps fifteen metres across on the inside, and the raised circular bank that contains it gives it the appearance of a low platform lifted just slightly above the surrounding land. These characteristics identify it as a rath, the Irish term for a ringfort, a class of monument built predominantly during the early medieval period, roughly between the fifth and twelfth centuries, typically as a defended farmstead enclosing a family's dwelling and outbuildings.

The site appears on the Ordnance Survey's six-inch map of 1840 under the name 'Lissard', a placename derived from the Irish lios ard, meaning high or elevated enclosure, which fits the slight rise of the earthwork. By the time the more detailed twenty-five inch OS map was produced in 1897, the feature was depicted as a raised circular area with an exterior diameter of roughly twenty-one metres, already ringed by trees. Ten metres to the south, the same map records a disused lime kiln, a structure used for burning limestone to produce quicklime for agricultural or building purposes, suggesting the land around the monument was actively farmed well into the nineteenth century. The ringfort sits on the demesne lands of Attyflin House, located approximately one kilometre to the south, and remnant field boundaries visible to the east and northeast in more recent aerial imagery correspond closely with those shown on the 1840 map, giving a sense of how little the immediate landscape has shifted in certain respects.

The monument is in private pasture and not formally open to the public, so access would require permission from the landowner. For those who do view it, whether from a distance or with appropriate permission, the most reliable way to appreciate the form of the earthwork is from above; a Google Earth image captured in November 2019 shows the tree-covered outline clearly against the surrounding fields. On the ground, the encircling bank and the slight interior hollow are the main features to look for, along with whatever remains of the lime kiln to the south.