The Smědá (ˈsmɲɛdaː, Wittig, Witka) is a river of the Czech Republic and Poland. A right tributary of the Neisse River with a length of 51.9 km (5.9 km within Poland) and basin area 331 km² (60 km² in Poland). The river flows out of the three streams in the Jizera Mountains: Bílá Smědá, Černá Smědá, and Hnědá Smědá, in the Czec...