On the Ordnance Survey's 1840 six-inch map it appears as the Track of King William's Road, but local tradition also knew it as The Hag's Road and The Stony Road. Any one of those names would prompt curiosity; the combination of all three, attached to a barely visible depression in a County Limerick field, makes this an unusually layered piece of landscape history.

The road's connection to King William refers to William III, whose campaign to take Limerick during the Williamite War of the early 1690s would have required the movement of troops and supplies across exactly this kind of ground. Whether the king himself travelled this particular route is the sort of claim that accumulates around old roads, but the Ordnance Survey fieldworkers recorded the tradition faithfully. What gives the account an unexpected concreteness is what happened when the road was levelled around 1789: workmen found a great number of coins during the process, suggesting the track had real antiquity and had seen enough traffic to scatter or deposit currency along its length. The Survey's Name Book for Caherconlish Parish preserves the description, noting all three of the road's names alongside the account of the levelling and the coin finds.

Today the road survives as a fosse, a term for a shallow ditch or trench left by the robbing or erosion of an old raised surface, roughly 2.2 metres wide and between 0.2 and 0.6 metres deep. It runs alongside a field boundary to the south of the site, crosses that boundary partway along, and then disappears in the field to the north. There is a possible terminus at the eastern end. The trackway is also visible as a cropmark on aerial imagery, the kind of subtle difference in vegetation colour and growth that betrays buried or disturbed ground below. The site sits approximately 380 metres south-southeast of Caherconlish village and 370 metres southwest of Boskill House. It is agricultural land, so access requires consideration, but the aerial images compiled by Martin Fitzpatrick give a clearer sense of the route than anything visible from ground level.