» Strymon redirects here. For the Strymon Gulf, see Strymonian Gulf. For the butterfly genus, see Strymon (butterfly). The Struma or Strymónas (Bulgarian Струма,, Greek Στρυμόνας [striˈmonas], Turkish (Struma) Karasu 'black water')'s a river in Bulgaria and Greece. Its ancient name was Strymōn (Greek: Στρυμών /stry'mɔːn/). Its catchment area's 10,800 km
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