A field system is exactly what it sounds like, an organised pattern of enclosed or divided land marked out by banks, ditches, walls, or ridges, but the ordinary name does little to suggest how strange and affecting these features can appear when encountered in the landscape. In parts of the west of Ireland, field systems survive precisely because the land was eventually abandoned rather than continuously farmed and modernised, leaving boundaries and cultivation patterns fossilised in the turf.

Ballaghafadda, whose name derives from the Irish for a long road or pass, sits within a county whose archaeology ranges from the famous Burren limestone pavements, with their ancient field walls, to less-visited relicts tucked into bogland and rough pasture. Field systems of this kind can date from the Bronze Age through to the post-medieval period, and without further detail it is not possible to say with certainty which era shaped this particular arrangement of the land. What is clear is that someone, at some point, made deliberate decisions here about where one holding ended and another began, where animals would graze and where crops might grow.