Iron Age earthwork. The site appears as a substantial mound set in a wetland basin. The Ordnance Survey recorded two concentric earthwork banks, the outermost of which extended eastwards under the modern road. These features if real are rather less pronounced today. Nevertheless the substantial central mound is quite prominent to the west of the roadside.


Excavations by Peter Gelling were cut short by his untimely death, but his investigations were sufficiently advanced for him to propose settlement activity, including the presence of structures, and to suggest an occupation lasting until as late as the 7th century AD based on the recovery of E-ware.


More recent excavations by the Centre for Manx Studies towards the edge of the mound found evidence for ironworking, and material radiocarbon dated to the 1st or 2nd century BC.