This is one of the more quietly arresting details about the rath at Parkbaun, a circular ringfort roughly fifty metres in diameter that has been slowly losing its shape to centuries of agricultural activity. A field boundary cuts across the monument from the north-north-west, which tells its own small story about how the living landscape gradually absorbs and erases what earlier communities built.

A rath is an earthen ringfort of early medieval Ireland, typically enclosing a farmstead or high-status dwelling within a raised bank and ditch. At Parkbaun the arrangement is more elaborate than the basic form: there is an inner bank that retains evidence of stone-facing along its interior, a fosse (a defensive ditch running between the earthworks), and an outer drystone wall. Together these concentric layers suggest a settlement of some consequence, though the monument is now poorly preserved and the original profile difficult to read from ground level. The souterrain in the western sector of the interior is a separate structure worth pausing over. These underground passages, typically built from drystone or rock-cut chambers, are found across early medieval Ireland and are thought to have served variously as places of refuge, cool storage for dairy produce, or escape routes. The Parkbaun example was noted in published accounts by Knox and Redington in 1916 and again by McCaffrey in 1952, which places this site within a longer tradition of local antiquarian interest in the landscape around it.

The site sits in undulating pastureland, and the remaining earthworks are subtle enough that the monument can be difficult to distinguish without walking its perimeter carefully. The clipped northern arc, where the field boundary intersects the rath, gives some sense of how much has already been lost to ordinary farming over the generations.