On a north-facing slope just south of Streamstown Bay in County Galway, a stretch of dry-stone walling has emerged from exactly that kind of burial. Thirty metres long, gently curving, and built from loose stone interspersed with upright slabs, it is wide enough to suggest real intent and permanence, yet low enough now that it barely reaches ankle height. At its north-western and eastern ends it simply disappears back into uncut bog, as though the land has swallowed the rest whole.

What makes this wall quietly remarkable is its classification as pre-bog, meaning it was already standing before the peat grew up around it. Bogs accumulate slowly, at roughly a millimetre per year under the right conditions, so a structure consumed and then partially revealed by cutaway bog is almost certainly very old indeed, predating the widespread development of the surrounding landscape as we see it today. Roughly three metres to the south of the wall sits a subcircular hut, its interior measuring somewhere between 1.8 and 2 metres across, defined by a low bank of earth and stone. Together, the wall and the hut suggest a small agricultural enclosure, perhaps a field boundary associated with a single dwelling or seasonal shelter. The combination is modest in scale but coherent: somebody once divided this ground with purpose, kept something in or out, and sheltered nearby.