A promontory fort of this kind works on a simple but effective principle: sheer cliffs do most of the defensive work on three sides, leaving only the landward neck to be sealed off with earthworks. Here, the bank still stands roughly two metres high and six metres wide, with a fosse some five metres across running beside it. Given how little of the promontory there is to protect, the scale of these earthworks suggests something more ambitious once stood here, the current remains being the reduced outline of a more substantial construction.

Casey's 2002 survey of the area described the interior, or garth, as an oval grassy platform sitting close to the enclosing bank, with a lower outer platform separated from it by a ridge of exposed bedrock. No entrance gap has survived, so how people moved in and out is no longer legible in the landscape. The sea rocks that extend westwards at low tide hint that the headland was once considerably larger, gradually lost to coastal erosion over the centuries. What is notable beyond the fort itself is the broader pattern: two headlands immediately to the south were also defended in a similar fashion, suggesting this stretch of coastline was a zone of deliberate, repeated fortification rather than a single isolated effort. The surrounding fields still carry the faint corrugated traces of lazybeds, the narrow raised cultivation ridges associated with potato farming, placing later agricultural use directly alongside these much older remains.