An Iron Age or early medieval promontory fort which may have been occupied in the 5th - 6th century AD. It is situated on a natural promontory above the Santon River. It utilises almost vertical drops to the north and west for protection and is defended to the south and east by an earthwork rampart with a maximum internal height of 1.7 metres. An outer ditch on the landward side is now almost ploughed out, but the remaining portion has a maximum width of 5.0 metres. The maximum depth from the outer lip is 1.1 metres with the drop from the top of the periphery bank 2.5 metres. The bank has several probably modern breaks on the landward side but no original entrance could be detected. The fort is grass-covered and no trace of internal habitations was found.