Quarries earn that designation when there is reason to believe their origins, their method of working, or the material they yielded connects meaningfully to the human past of a place. The name Knockacarrigeen contains the Irish elements for a small rocky hill, and in Galway that kind of toponym tends to mark ground where stone was always close to the surface and therefore always useful.

Beyond its classification and location, the documentary record for this particular site is thin. What can be said is that quarrying in Connacht has a long and layered history, ranging from the cutting of limestone flags for field walls and cabin floors to the extraction of shaped stone for churches, landlord demesnes, and estate improvements during the eighteenth and nineteenth centuries. A quarry recorded as a monument might represent any of these phases, or something older still. Stone removed from such places built the physical fabric of rural Ireland, and the workings left behind often preserve tool marks, spoil heaps, and sometimes the outlines of earlier extraction that later use never entirely erased.