Most survive as single-bank affairs, which is what makes this one in Crean, in the barony of Glenquin in County Limerick, quietly worth pausing over. It carries two concentric earthen banks, a design that suggests either greater status or a heightened concern for defence on the part of whoever lived within.

The earthwork encloses a roughly circular area of approximately 26 metres in diameter. Between the two banks runs a fosse, a deliberately dug ditch, here measuring about 3.1 metres wide. The inner bank still completes a full circuit, standing to an external height of around 1.6 metres, which is a reasonable survival for a structure of this kind. The outer bank has fared less well; it remains intact only from the south-west around to the north-west, and again from the north-east to the east, with the rest presumably lost to centuries of agricultural activity. A field boundary has been built up against the outer bank on the south-east side, which tells its own quiet story about how farmers have long worked around, or sometimes through, these ancient enclosures. Along the south-east to west-south-west stretch of the fosse, bushes have been planted along the outer edge, a modern intrusion that has altered the profile of that section. The record was compiled by Denis Power and uploaded in August 2011.

The interior sits on level ground but is rough and marshy underfoot, with some overgrowth, so sensible footwear matters more than it might at a more visited site. The surrounding land is flat pasture, which means the banks read clearly against the landscape once you know what you are looking for. The partial survival of the outer bank, and the way the modern field system has grown up around the monument, makes this a useful place to think about how these structures have been absorbed, gradually and pragmatically, into the working countryside over more than a thousand years.