A Letzi (plural: Letzinen, also known in German as a Talsperre in the sense of a fortification, not a dam[1]) or Letzimauer refers to defensive barriers whose purpose is to protect the entrance into a valley. The term is Swiss, and such stone barriers were particularly common in medieval Switzerland but were also built in Austria and Germany.
- ^ "Letzi - Grammatik" (in German). Duden. Retrieved 18 July 2012.