At Sonnagh in County Galway, a cluster of dots on the 1930 edition of the Ordnance Survey six-inch map suggested, to anyone reading it, the presence of something worth investigating. Dots of that kind were the mapmakers' shorthand for features that warranted attention, and for decades this particular cluster sat there, hinting at something unresolved.

When the site was finally inspected in 1985, what the surveyor found was a disused quarry, overgrown and roughly rectangular in shape, the kind of working that would once have supplied local stone for field walls, roads, or building. The circular appearance the map had suggested was an artefact of the dotted notation rather than the shape of the ground itself. No finds, no structures, no evidence of earlier human activity beyond the quarrying. The gap between what a map implies and what the landscape actually holds can be considerable, and this site is a small, honest record of that gap being closed.