It is easy to miss, and that is part of what makes it worth noticing. The remains measure roughly five and a half metres along their longer axis and just over two and a half metres across, the walls reduced to a spread of rubble no more than half a metre high. What gives the structure its character is the way the interior was levelled by cutting into the slope at the southern end, a detail that speaks to deliberate construction rather than casual shelter.

This is a hut site, a term used in Irish archaeology for the ground-level remains of small, often circular or oval dwellings whose date and function can be difficult to pin down without excavation. They occur across upland and marginal landscapes throughout the country, frequently in association with field systems that were abandoned as conditions changed, whether through climate deterioration, shifting agricultural practices, or population pressure. At Coonane, the hut does not stand in isolation. It sits within a network of relict field boundaries, the ghostly outlines of an organised agricultural landscape that has long since gone out of use, and a second hut site lies roughly sixty metres to the south-east. Together, they suggest a small community or seasonal working settlement that once made productive use of ground that is now largely boggy and overgrown with fern.