This one in Coolagarranroe, County Tipperary, barely announces itself at all. On a south-west-facing slope of rolling pasture, there is a roughly circular area of slightly raised ground, approximately 33 metres in diameter, that gives almost nothing away to anyone standing beside it. No enclosing bank survives. No fosse, the defensive ditch that typically surrounds a ringfort or similar enclosure, is visible above ground. The site exists in the archaeological record largely because someone, looking down from an aircraft in May 1977, noticed that the land was not quite flat in a way that seemed deliberate.

The identification came from a GSI aerial photograph, reference R.597/6, taken during a survey flight that year. From that elevated vantage point, the circular form became legible in a way it simply is not at ground level. Whether the earthwork was always this subtle, or whether centuries of agricultural activity have gradually levelled whatever bank or boundary once defined it, is not known. The classification remains cautious: a possible circular earthwork, possibly levelled. Circular earthworks of this kind in Ireland are most commonly associated with ringforts, the enclosed farmsteads of the early medieval period, though without excavation it would be premature to say so with any confidence about this particular site.