A circular rampart (German: Ringwall)[1] is an embankment built in the shape of a circle that was used as part of the defences for a military fortification, hill fort or refuge, or was built for religious purposes or as a place of gathering.
The period during which these structures were built ranged from the Neolithic to the Middle Ages.
- ^ Comité International d'Histoire de l'Art (1996) Burgen und Feste Plätze/Chateaux-forts et places fortes/Castles and Fortified Places, Munich: De Gruyter, p. 236.