When surveyors consulted the 1933 edition of the Ordnance Survey six-inch map, they found a hachured area, the short radiating lines cartographers use to suggest a depression or disturbed ground, that seemed to indicate something worth recording. When the site was physically inspected in 1985, it resolved itself into a disused gravel pit, the kind of working that once supplied material for road surfaces and local construction across rural Ireland.

The esker ridge on which it sits gives the site its quiet geological interest. Eskers are long, winding ridges of sand and gravel deposited by meltwater streams that ran beneath glaciers during the last ice age, and they are a distinctive feature of the Irish midlands and west. Because they rise above the surrounding bogland and offer well-drained ground, esker ridges were historically used as routeways, burial sites, and, as here, sources of extractable gravel. A pit dug into an esker is essentially reaching back into glacial sediment laid down tens of thousands of years ago. The 1933 map notation suggests the pit had already fallen out of use by the time it was formally recorded, its working life likely tied to the demands of road improvement or local building in the late nineteenth or early twentieth century.