It is easy to walk past without registering what it is: a circular enclosure roughly 5.5 metres across, defined by an earthen bank that rises to about 0.8 metres and runs from the south-southwest to the northeast. What makes it worth pausing over is the construction detail preserved along part of the bank's inner face, where stone courses survive beneath the accumulated earth and vegetation. That combination of earthwork and internal stone facing is a small but telling sign that this was once a deliberate, carefully made structure rather than a natural feature of the landscape.

Sites of this kind, broadly classed as hut sites, represent some of the most modest and most overlooked traces of early settlement in Ireland. Where a ringfort, the more familiar type of enclosed settlement, typically served as a farmstead with associated agricultural activity, a hut site of this scale may have been a simpler, more temporary shelter, possibly associated with seasonal farming or transhumance, the practice of moving livestock to upland grazing in summer. The east-facing slope at Cahergarriff would have offered some shelter from prevailing westerly weather and morning light onto the entrance area, both practical considerations for whoever occupied or used the space. No specific date has been assigned to this particular enclosure, which is not unusual; without excavation, earthen structures of this type are difficult to place precisely within the long span of Irish prehistory and early medieval life.