This one barely whispers. On a ridge in Falleighter, County Mayo, what may once have been an enclosure survives only as a faint oval swelling in the ground, roughly 16 metres north to south and 26 metres east to west. The surface is uneven, the outline indistinct, and the whole thing is easy to walk across without registering it as anything other than ordinary pasture. It never appeared on any edition of the Ordnance Survey six-inch maps, which means it left no cartographic trace across more than a century of systematic surveying. Whatever it was, it slipped through.

Enclosures of this kind, typically defined by an earthen bank or fosse encircling a domestic or agricultural space, were a common feature of early medieval Ireland, and many have been levelled over centuries of farming. What survives at Falleighter is described as a possibly levelled example, which places it in a broad and difficult category of sites where the archaeology has been reduced to an ephemeral undulation. The ridge it occupies falls away to the north and north-east, and Lough Caldragh lies roughly 100 metres to the south. That proximity to water is a familiar pattern in early settlement, though in this case the connection remains suggestive rather than documented.