A Viereckschanze (from German "four-corner-rampart"; plural -en) is a rectangular ditched enclosure that was constructed during the Iron Age in parts of Celtic Western Europe. They are widespread in Germany, parts of northern France[1][2] and also in some regions of the Iberian Peninsula, most notably in Portugal.[3]
Plan of the densely-occupied Bopfingen: the 2nd-century BC Viereckschanze (83 m x 73 m) is at the bottom, a 9.5 x 10 m building lies inside the Viereckschanze to the lower left, and two other buildings are visible as large post holes at opposite ...