The ground gives nothing away; the site is not visible at ground level, swallowed by the wet, marshy terrain that characterises this stretch of the river's floodplain. What we know of it comes largely from a single cartographic moment frozen in the nineteenth century.

When the Ordnance Survey produced its six-inch map series in 1837, the surveyors recorded a circular enclosure here and marked it plainly with the word "Fort". Circular enclosures of this kind are a common feature of the Irish landscape, most often the remains of a ringfort, a type of enclosed farmstead typically dating from the early medieval period, roughly 500 to 1200 AD, in which a family and their livestock would have lived within a raised earthen bank or stone wall. That the Ordnance Survey cartographers could identify it clearly enough to outline and label it suggests the feature was at least partially legible in the landscape nearly two centuries ago. The boggy ground beside the Shannon has since done what wet ground does over time, slowly obscuring what remains beneath a waterlogged surface that preserves and conceals in equal measure.