We missed this one but "Durham University have been excavating a banjo style enclosure within the Late Iron Age Bagendon 'oppidium' complex since 2012 and the current excavation hopes to provide further evidence on the chronology of the enclosure. This work is part sponsored by the Bristol and Gloucestershire Archaeological Society"
http://www.archaeologyfestival.org.uk/events/212
Something is not right. This message is just to keep things from messing up down the road