On the western side of the Rosmuc peninsula in Connemara, the ruins known locally as Cill Bhriocáin occupy an overgrown graveyard close to the shoreline, and the ensemble of buildings crowded into that small space suggests a site that accumulated layers of use quietly, without any great architectural ambition.

The church itself is probably late medieval in date, oriented east to west in the conventional manner, and is notable for its modest but purposeful details. The doorway in the south wall is formed by a roughly dressed segmented arch, a style suggesting competent but unhurried local craftsmanship. The east gable carries a flat-headed window, and both the east and west gables contain aumbries, small recessed cupboards set into the wall that were used to store liturgical vessels and sacred objects. Their presence in both gables is a small but telling sign of active devotional use over time. The graveyard also holds the rectangular foundations of a second building, considerably larger than the church at just under thirteen metres in length, which may have served as a priest's house. Alongside these two structures, a holy well survives within the same enclosure, reinforcing the sense of a site where religious life was layered and continuous rather than defined by a single building or a single moment. The antiquarian Killanin noted the site in 1947, and his account remains one of the few sustained pieces of attention the place has received.