On the 1933 edition of the Ordnance Survey six-inch map, a hachured feature sits on a rise in the pastureland at Raford in County Galway. Hachuring, the system of short radiating lines used by cartographers to suggest slope or a hollow in the ground, typically flags something worth a second look: a ringfort, a burial mound, an earthwork of some age. In this case, inspection on the ground revealed something altogether more prosaic. The feature is a pit, almost certainly a quarry, and its origins are recent enough, post-1700, that it falls outside the scope of archaeological classification entirely.

That boundary, the year 1700, is a practical dividing line used to separate archaeological sites from features considered part of the historical rather than prehistoric or early medieval record. Quarries of this kind were a common and unremarkable part of the rural Irish landscape, dug to extract stone or gravel for local use, then gradually absorbed back into farmland. What makes this particular pit worth noting is less what it is than what it briefly appeared to be, a reminder that old maps encode their own uncertainties, and that not every hachured mark conceals something ancient.