It is not a dramatic ruin, no tumbled walls or vaulted chambers, but a quietly persistent shape in the land: a rath, the kind of enclosed farmstead that once formed the basic unit of early medieval Irish rural life. Thousands were built across the country, yet this one in Fahee has survived in notably good condition, its form still legible after more than a thousand years of agricultural activity around it.

The enclosure is subcircular in plan, measuring roughly 25 metres north to south and 23 metres east to west internally, defined by an earth and stone bank between 3.5 and 5.8 metres wide. The bank stands modestly, between half a metre and just over a metre high on the interior, slightly less on the exterior, but along the western side there are traces of what may be original outer facing stones, suggesting the bank was once more formally constructed than it now appears. Ordnance Survey mapmakers recorded the site on the first edition of their six-inch map in 1842, and it appeared again, marked with hachures indicating its raised form, on the later Cassini edition of 1920. A second enclosure lies roughly 145 metres to the south-south-west, raising the possibility that this part of Fahee once supported more than one such enclosed settlement in close proximity, a pattern not unusual in areas of productive early medieval farmland. The rath sits with land falling away to the south, a position that would have offered both drainage and an open outlook across the surrounding countryside.