"Altena (About this sound pronunciation ) is a town in the district of M\u00E4rkischer Kreis, North Rhine-Westphalia, Germany. The town's castle is the origin for the later Dukes of Berg. Altena is situated on the Lenne river valley, in the northern stretches of the Sauerland."@en . "19026"^^ . "Altena"@en . "145.0"^^ . "MK" . "58741\u201358762" . . "4.429e+07"^^ . "2009-06-30Z"^^ . . . . . . "02352" .