An Iron Age crannog in south-west Scotland: underwater survey and excavation at Loch Arthur

Abstract

As part of the second phase of the South West Crannog Survey, the crannog in Loch Arthur, New Abbey, Dumfries and Galloway, was surveyed and small-scale excavations were carried out on submerged eroding deposits. The crannog was seen to be at threat from erosion for a number of reasons, including insect infestation, aquatic plants and wave action. The eroding deposits were sampled and their ecofactual content analysed and structural timbers from various positions in the crannog mound were radiocarbon dated. The results suggest that the site is a massive packwerk mound that was constructed in the second half of the 1st millennium BC, most likely in one event. After an apparent period of abandonment, the site was reoccupied in the later medieval period.