This one, in the pastureland of Thomastown Demesne in County Tipperary, is barely there at all. What survives is a faint rectangular outline, roughly 32 metres north to south and 35 metres east to west, its edges marked by nothing more dramatic than a very slight rise where a bank once stood and was subsequently levelled. On a day when the grass is long, it would disappear entirely.

The enclosure was not noticed by the surveyors who produced the first edition Ordnance Survey six-inch maps, the nineteenth-century series that recorded the Irish landscape in remarkable detail. It only came to light from the air, identified through an aerial photograph taken on 16 April 1974 as part of a Geological Survey of Ireland flight. That a feature invisible at ground level should resolve itself when seen from above is a reminder of how much archaeology remains embedded in Irish farmland, legible only to particular angles of light or vantage. A slight depression to the north of the enclosure appears to be natural rather than man-made, which at least simplifies the picture a little. Two further earthworks lie within close range, one roughly 300 metres to the south-west and another approximately 400 metres to the south-east, suggesting that this quiet stretch of Tipperary pasture holds a cluster of features whose relationships to one another remain unclear.