Somewhere in the marshy ground of a west-facing slope at Corbally in County Cork, an archaeological enclosure once existed, its outline irregular enough to form an L-shape across the soggy terrain. Today there is no visible surface trace of it whatsoever. The land has been smoothed over, the feature absorbed back into the hillside, leaving only its former existence on paper as evidence that anything was ever there.

The enclosure appeared on the Ordnance Survey six-inch map of 1936, which means it was still a legible presence in the landscape at that point, at least from the air or from a surveyor's careful eye. Enclosures of this kind, broadly defined as areas bounded by a bank, ditch, or wall, could serve many purposes in the Irish archaeological record: settlement, agriculture, ritual, or some combination of all three. The L-shaped plan noted here is relatively unusual, and the marshy, sloping ground might have influenced how and why the boundaries were laid out as they were. Whatever its original purpose, it did not survive the late twentieth century. The site was levelled around 1984, a date precise enough to suggest the event was recorded, if not necessarily mourned.