What makes this particular example worth noting is a small but telling detail: the earthen bank, roughly 1.4 metres high and enclosing a circular area of about 20 metres in diameter, retains stone-facing on its outer northwest side. That surviving stonework suggests the original construction was more carefully finished than a simple heaped-earth boundary, and hints at the labour and intention that went into building it.

The structure is a rath, the Irish term for a ringfort, a form of enclosed farmstead that was commonplace across Ireland during the early medieval period, roughly between the fifth and twelfth centuries. Thousands survive in varying states of preservation, but each one marks the site of what was once a family farmstead, with the enclosing bank serving as a boundary and a modest form of defence for livestock and household. The stone-facing visible here at the northwest of the bank is a relatively uncommon survival, since the outer faces of earthen raths were more often left plain or have since eroded. Here at Clodagh, that facing has endured, even as the rest of the structure has been reclaimed by growth.