In the pastureland of Cornamucklagh in County Galway, a hachured marking on the 1930 edition of the Ordnance Survey six-inch map suggested something worth noting, a depression or earthwork significant enough to record. When the site was inspected in 1984, it turned out to be a disused gravel pit, largely infilled and absorbed back into the surrounding fields. The hachuring, a cartographic technique using short lines to indicate slopes or hollow features in the landscape, had preserved the memory of something the land itself had nearly forgotten.