The earthen bank that defines it runs to nearly five metres wide at its base and rises to over two metres on its outer face, figures that speak to a structure built with considerable effort and intention, even if its builders left no written record behind.

This is a ringfort, a type of enclosed farmstead or settlement that was built across Ireland, most prolifically during the early medieval period, roughly between the fifth and twelfth centuries. The Crover example is roughly circular, measuring about 36.8 metres east to west and 35.4 metres north to south. What makes it slightly unusual is the survival of traces of outer stone facing along the northern and eastern arc of the bank, suggesting that at least part of the structure was originally revetted in stone rather than left as bare earth. There are also faint remains of an outer fosse, a defensive ditch, visible at the south-western side, though it is shallow now, just a trace of what it once was. The original entrance, about 2.4 metres wide at its base, faces east-south-east and is partly blocked today. By the year 2000 the interior had become heavily overgrown, which is common enough for sites of this kind but does make reading the ground more difficult.