Their location was so well established that a French cartographic survey gave the adjoining lane its own name, the Rue des Moulins, or Street of the Mills. Today, most visitors walking past Limerick's City Hall have no idea that the ground around them still holds the bones of those structures, or that two stubs of wall continue to project silently into the river below.

The mills are recorded as early as a 1590 map held in Trinity College Dublin, which identifies them as belonging to a Thomas Arthur and the Crown respectively, the latter known as the Queen's Mills. Both structures stood out from the city wall just below the Curragower reef, a natural rock formation in the Shannon, and were connected to that wall by a bridge. The historian Harold Leask, writing in 1941, drew on an earlier French cartographic source compiled by Lenihan in 1866, as well as the seventeenth-century Civil Survey, to piece together the physical details: two stone houses, one measuring roughly 10.8 by 9.1 metres and the other approximately 13.7 by 8.2 metres, each containing mill wheels, alongside a thatched house. The pair were probably one and the same as what later sources call the King's Mills, suggesting the complex changed hands or title over time without much altering its function.

What survives today is fragmentary but findable. Hodkinson, writing in 2009, noted that roughly half of the mill building still exists within the grounds of Limerick City Hall, and that the two wall stubs visible in the river are the most tangible remnant of the complex. The site is not formally interpreted or signed, so it rewards a slow, deliberate look rather than a passing glance. The Curragower reef itself is visible from the riverbank and gives a sense of the hydraulic logic that made this stretch of water worth harnessing in the first place. Low water levels can make the riverside masonry easier to read, particularly in drier months.