What the Ordnance Survey recorded in 1838 as a tree-planted subrectangular enclosure, roughly 30 metres east to west and up to 25 metres north to south, had by 1919 shrunk to something more ambiguous: a penannular, or almost-ring-shaped, area defined by a field boundary open to the north. By the time anyone looked closely at ground level, in 1998, even that had softened into a broad, roughly C-shaped curve of dilapidated earthwork, engulfed in hawthorn and following the natural contour of the slope rather than any obviously deliberate line.

The remains as inspected consisted of a scarp and field bank between 0.8 and 1 metre wide and under a metre high, curving from the south-southeast around to the northwest, with the ground inside sloping gently southward. The subrectangular outline visible on the 1838 six-inch map could still just be traced at that point, though the curving field fence that partly defined it has since been removed entirely. What the original 1838 enclosure actually was remains an open question. There is no clear evidence that it functioned as a rath, the type of circular earthen ringfort associated with early medieval settlement and farming, nor that it holds any other archaeological significance. The uncertainty is compounded by what sits nearby: a confirmed rath lies roughly 40 metres to the north-northeast, and a possible enclosure of uncertain character around 200 metres in the same direction. Whether the Carrownteeaun feature was ever related to either of those, or was simply a managed farmyard enclosure that the land eventually absorbed, the surviving earthwork no longer offers a clear answer.