A ringfort is a roughly circular enclosure, typically defined by an earthen bank and ditch, built during the early medieval period as a farmstead or defended homestead. This one measured approximately 35 metres in diameter, a modest but not unusual size, and it left enough of an impression on the landscape to be recorded on the first edition of the Ordnance Survey six-inch map. Today, no visible surface trace survives. The ground offers nothing to the eye.

The first edition of the OS six-inch map, surveyed in Ireland during the 1830s, captured the outlines of countless earthworks that were still legible in the landscape at that time. Whatever remained of this enclosure in the nineteenth century has since been levelled, most likely through agricultural activity in the intervening decades. It is a pattern repeated across much of lowland Connacht, where deep ploughing and land improvement schemes gradually erased features that had persisted for a thousand years or more. The site at Moyvoon survives now only as a notation, a circle drawn on an old map, its original function and history otherwise unrecorded.