Souterrains, which are man-made subterranean chambers and tunnels typically constructed during the early medieval period in Ireland, were built for purposes that archaeologists still debate: refuge, storage for perishables, or concealment of people and goods during times of raid. They are found across Ireland in considerable numbers, but each one is a local decision, a community's response to its particular landscape and circumstances. The name Ceathrú Na Gcloch translates roughly from Irish as "the quarter of the stones," which may say something about the character of the land above ground, and perhaps about the raw material that made the construction of such a structure feasible in the first place.

Beyond its classification and location, detailed records for this particular souterrain are not yet publicly available, which places it among a category of monuments that are registered and mapped but not yet fully documented in accessible form. What that means in practice is that the specifics, its dimensions, its state of preservation, whether it retains intact lintels or has partially collapsed, remain unconfirmed in the open record. Mayo has a long tradition of early medieval settlement, and souterrains associated with ringforts are relatively common across the west of Ireland, suggesting this structure may well have sat within or adjacent to an enclosed farmstead of the early Christian centuries. The stones that gave the townland its name may have served more than one purpose across the generations.