The disused quarry at Cregg, in County Galway, is that kind of place: unremarkable in itself, but oddly interesting for what its paper trail reveals about how landscape features get recorded, forgotten, and eventually investigated.

The 1920 edition of the six-inch Ordnance Survey map shows a hachured feature at this location, the small radiating lines used by cartographers to indicate a depression or change in relief. When the site was inspected in 1983, that mark resolved into a disused quarry set within what is now cleared pastureland. Because the quarry post-dates AD 1700, it falls outside the scope of formal archaeological classification, which in Ireland generally concerns itself with earlier remains. That boundary is not arbitrary: the post-medieval period, roughly from the seventeenth century onwards, has its own documentary and industrial record, and a working quarry of that era would have supplied cut stone for field walls, farmhouses, and estate buildings in the surrounding area, the kind of everyday infrastructure that rarely attracts much attention but shaped the Connacht landscape thoroughly.