But Caherbroder repays closer attention. The enclosure measures roughly 29.6 metres in diameter and is defined by two drystone walls, now grass-covered, with a fosse, a defensive ditch, running between them. A causewayed entrance gap, just 1.6 metres wide, breaks the eastern face, and a curving stone wall of about ten metres in length curves out from the south-south-west of the outer enclosure. It is a well-preserved example of a cashel, the Irish term for a ringfort built from stone rather than earthen banks, a form of enclosed settlement used from the early medieval period onwards.

Beneath the interior, in the south-west quadrant, lies a souterrain, an underground stone-lined passage or chamber that would typically have served for storage or concealment in early medieval times. The presence of one here suggests the site was not merely a symbolic enclosure but a working settlement, built with some practical care for the security of its inhabitants and their goods. Roughly fifty metres to the north sits a bullaun stone, a large boulder with one or more cup-shaped hollows ground into its surface, which carries a local tradition associating it with St Patrick. Such associations are common across Ireland, attaching early Christian significance to prehistoric or early medieval features in the landscape, and while the connection to Patrick himself is almost certainly legendary, it speaks to the long memory this corner of Galway has kept about the place.