The walls rise only thirty to forty centimetres now, thick with moss, and the interior, roughly three metres across, is scattered with fallen stone. There is no obvious entrance gap remaining. What makes this particular ruin quietly arresting is not any single dramatic feature but the density of context around it: this is one of at least ten booley huts recorded in a cluster on the same ridge, associated with the remains of a field system that once organised this stretch of rough upland pasture.

A booley hut is a temporary seasonal shelter, used during transhumance, the old practice of moving livestock, usually cattle, to higher grazing ground in summer while the lower fields were given over to crops. Families, or more often young people tasked with minding the animals, would follow the herds up to the hills from late spring, living in these simple stone structures for months at a time before descending again in autumn. The practice was widespread across Ireland and the wider Gaelic world and persisted in some areas well into the nineteenth century. At Cregganroe the huts sit on a terrace just above a broad expanse of boggy ground that stretches away to the north, ground that would have been far too wet for tillage but serviceable enough as rough summer pasture for hardy cattle. The hut in question has a small subrectangular annex appended to its eastern exterior, a rough stone setting measuring roughly two metres by one metre, possibly used for penning a small number of animals or for storage. An east-west field wall intersects the hut on its south-west side, suggesting that the organisation of the landscape here was more deliberate and layered than the tumbled remains now imply.