On the western bank of the Easky River in County Sligo, on the northern of two low conjoined hillocks, there once stood a ringfort, a type of enclosed settlement common across early medieval Ireland, typically consisting of a circular earthen bank and ditch enclosing a domestic area. Nothing of it remains at ground level today, and yet it appears clearly on the 1837 edition of the Ordnance Survey six-inch map, recorded there as a circular enclosure somewhere between fifteen and twenty metres in diameter, small even by the modest standards of the form.

The OS six-inch mapping of the 1830s was one of the most ambitious cartographic projects of its era, and it captured a landscape still carrying traces of features that would not survive the following decades of agricultural improvement and land clearance. That this particular rath was noted at all tells us it was still legible in the landscape nearly two centuries ago, occupying its modest hillock beside the river. At some point between that survey and now, it was levelled entirely, leaving the map as its only meaningful record.