The one that survives in the parkland of the former Maryfort Estate in County Clare is a quieter proposition. So thoroughly has it been reduced over time that in several places the enclosing earthwork has almost vanished entirely, and the clearest way to read its full extent is not by walking around it but by studying aerial imagery. What remains on the ground is there, but only just.

A ringfort, or rath, is an enclosed circular or oval farmstead of the early medieval period, typically defined by one or more earthen banks and external ditches. The Maryfort example is oval in plan, measuring roughly 29 metres north to south and 24 metres east to west, which places it on the larger end of the scale for this monument type. The enclosing bank survives best along the western to north-eastern arc and the south-eastern to southern arc, where it still rises a modest 0.35 metres above the exterior ground level. An outer fosse, the shallow ditch that would originally have reinforced the bank, can be traced along parts of the circuit, though it is now only around 0.1 metres deep. The site sits on a slight natural rise at the base of a north-facing slope, a position that would have given the original inhabitants a degree of passive drainage and outlook, with the steeper part of the rise running away to the north and north-east beyond the fosse. The interior is noticeably uneven, the result of disturbance that has affected particularly the west-south-west and eastern sectors. At the north-east to south-east, there is a slight indent in the circuit, suggesting further interference at some point. The estate parkland surrounding it has swallowed much of the evidence that ground-level observation might once have offered.