Enclosure, Hundred Acres, Co. Mayo
Co. Mayo |
Enclosures
On the limestone pasture of Hundred Acres townland in County Mayo, a circular earthwork sits quietly unrecorded on any edition of the Ordnance Survey six-inch map.
It was aerial photography that eventually caught it, the slight raise of the ground betraying what centuries of farming had obscured. Enclosures of this type, roughly circular raised areas defined by a stone bank or wall, are among the more common but least understood features of the Irish landscape; they may have served as ringforts, cattle enclosures, or settlement boundaries, their origins typically somewhere in the early medieval period, though without excavation it is impossible to say with certainty.
The enclosure measures roughly eighteen to twenty metres overall, with an internal diameter of about sixteen metres east to west. It straddles two separate land holdings and is bisected by a modern east-west field wall, which marks the property boundary between them. The southern half survives in recognisable form: a sod-covered stony rise, around two metres wide and no more than half a metre high for most of its arc, moss-covered and interrupted by clumps of brambles. The basal course of the outer wall face is still visible on the south-eastern arc, the limestone blocks sitting more or less where they were originally placed. The interior of the surviving half is level and grassy, with some thistles establishing themselves in the undisturbed ground. The northern half tells a different story. In 2019 it was levelled, the improved pasture to the north of the field wall now showing only the faintest undulation where the bank once ran, a soft ghosting of what had stood there.
The contrast between the two halves is itself instructive. To the south, the land is rougher, broken by limestone outcrops and loose stones, with traces of older field divisions still visible; agricultural improvement here has been partial and slow. To the north, the cleared and levelled ground shows how quickly an ancient feature can be reduced to near-invisibility. What remains of this enclosure is unspectacular to the eye, a mossy rise, a few protruding stones, a level grassy interior, but that modesty is part of what makes it worth attention.