The structure is modest almost to the point of invisibility: a circular hut site just 2.6 metres across, its rough stone wall surviving to about half a metre in height, the interior partially buried under rubble. What gives it a quiet interest is the care taken to make it level. The builders cut into the slope on the western side to a depth of 0.6 metres and raised the ground on the eastern side by around 0.2 metres, creating a flat floor on what would otherwise have been awkward ground. Someone, at some point, went to considerable effort to make this small space habitable.

Hut sites of this kind are relatively common in the Irish upland record. They are generally understood as the remains of seasonal shelters, used by people moving livestock to higher pastures during summer months, a practice known as booleying. The construction method here, rough unmortared stone set into boggy ground, is typical of such structures. What makes the Crossterry site worth pausing over is its setting within a small cluster. Another hut site lies just four metres to the south, and a third is roughly twelve metres to the east. The grouping suggests that this was not a solitary episode of temporary occupation but something more organised, perhaps a family or small community making coordinated use of the hillside over a season, or across many seasons. The bog has preserved the outlines of their arrangement while gradually swallowing the details.