The cashel at Rathfee, in County Galway, does something more awkward: it survives only in fragments, a low arc of drystone walling that curves from the south-east around through the south to the north-west, then simply stops. Roughly forty metres east to west and thirty-eight metres north to south, the enclosure would once have been a substantial structure, but across much of its circuit there is nothing left to see at ground level.

A cashel is a ringfort built from stone rather than earthen banks, a form particularly associated with the west of Ireland where field stone was abundant and easily gathered. At Rathfee the monument sits in level grassland, which makes the absence of its northern and eastern sections all the more conspicuous. Later field walls, the kind of boundary-marking that has reorganised the Irish landscape in countless increments since the medieval period, cut directly through the monument at both the north-west and south-east, and the encroachment of agriculture over centuries accounts for much of what has been lost. What remains is enough to confirm the shape and approximate scale of the original structure, but not much more than that.