Luckenwalde (German pronunciation:[lʊkənˈvaldə]) is the capital of the Teltow-Fläming district in the German state of Brandenburg. It is situated on the Nuthe river north of the Fläming Heath, at the eastern rim of the Nuthe-Nieplitz Nature Park, about 50km (31mi) south of Berlin. The town area includes the villages of Frankenfelde and Kolzenburg.