The earthwork at Dromlara sits in gently undulating farmland roughly 315 metres north of the townland boundary with Kilduff, and what distinguishes it from many similar monuments is the way it has shifted shape, at least on paper, across successive map editions. The Ordnance Survey's six-inch map of 1840 recorded it as a sub-triangular enclosure; by the time the twenty-five-inch edition appeared in 1897, it was drawn as a roughly D-shaped, tree-planted earthwork. The trees remain today, and they are often the first thing that catches the eye.

Ringforts, sometimes called raths, are enclosures typically constructed during the early medieval period, roughly between the fifth and twelfth centuries, and they served as defended farmsteads for farming families of varying status. The earthen bank and surrounding ditch, known as a fosse, were the defining features. O'Dwyer identified the Dromlara example as a ringfort in 1959, and when the Archaeological Survey of Ireland carried out a detailed field survey in 2008, the monument proved to be a raised, roughly oval area measuring approximately 52 metres on its north-west to south-east axis and 48 metres north-east to south-west. The enclosing bank is substantial, reaching an external height of around 1.6 metres in its better-preserved sections, though it reduces noticeably along the south-west to north-west arc. A possible causewayed entrance, where a deliberate crossing over the fosse would have allowed access, survives at the north-north-west. The fosse itself has been re-cut along its northern arc to a depth of around 1.5 metres, almost certainly to serve later land drainage rather than any ancient purpose. There is also a modern gap of around four metres cut through the western bank, and possible quarrying damage to the inner face of the bank at the south-east.

The site sits in working farmland, so access is not guaranteed without landowner permission. A second enclosure has been recorded approximately 100 metres to the south-west, which suggests the broader area may reward careful attention. The tree canopy that distinguishes the rath from surrounding fields makes it identifiable on aerial imagery, including an orthoimage captured by Google Earth in November 2018, and that same canopy means the earthwork is at its most legible from a distance in winter, when the structure beneath the trees is less obscured by foliage.