A class of middle Iron Age settlement site found widely across southern Britain. It comprises a small round enclosure, usually less than 6 ha in extent, bounded by a bank and outer ditch. The enclosure has a single main entrance that is approached by a long narrow trackway defined on either side by a low bank and ditch. The outer ends of earthworks defining the approach track are sometimes turned outwards to create a funnel entrance, the ground plan as a whole having the appearance of a banjo. Mainly constructed between 400 bc and 100 bc, banjo enclosures are essentially farmsteads or small hamlets with pretentious driveways, in some cases occupied by important and influential people to judge by the quality of the material culture represented.