Pfostenschlitzmauer (German for "post-slot wall") is the name for defensive walls protecting Iron Age hill forts and oppida in Central Europe, especially in Bavaria and the Czech Republic. They are characterized by vertical wooden posts set into the front stone facing. The rampart is constructed from a timber lattice filled with earth or rubble. The transverse cross beams may also protrude through the stone facing, as with the "murus gallicus" used in Gaul and western Germany.
The construction method is also known as "Kelheim-style", named after the extensive ramparts at the oppidum of Kelheim.
At the oppidum of Manching, an earlier "murus gallicus" rampart was rebuilt in Pfostenschlitzmauer style.
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