Like much of this Atlantic fringe, the land was once divided and worked by people who left their marks not in stone monuments of obvious grandeur but in the quiet geometry of field boundaries, walls and banks that still trace the outlines of older ways of organising the earth. It is one of these boundaries, formally recorded as an archaeological monument, that places Acaill Bheag on the map of Irish heritage, even if the details of its age and construction remain, for now, largely undisclosed.