It is easy to pass it by entirely. The wall survives to around 0.6 metres in height and 0.8 metres in thickness, enclosing a roughly circular space measuring some 10 metres north to south and 11 metres east to west. That is all that remains of what was once a habitation, a hut site of the kind found scattered across upland Ireland wherever people once lived, worked, or sheltered seasonally on marginal land.

Such circular stone structures are common enough in the Irish landscape that they rarely attract much attention, yet each one represents a deliberate choice of location. The break in the slope at Rossacoosane would have offered some shelter from prevailing winds while keeping the site open to the west and south, with those broad views over Kenmare Bay suggesting the occupants had reasons to watch the water or the surrounding land. Without excavation it is difficult to assign a precise date; hut sites of this form appear across a wide span of Irish prehistory and into the early medieval period. The gorse that now obscures much of the wall has, in a sense, become the site's main feature, a dense tangle that both conceals and inadvertently preserves what lies beneath.