Sefid-Rud

Other names and transcriptions include Sepīd-Rūd, Sefidrud, Sefidrood, Sepidrood, and Sepidrud. Above Manjil, "Long Red River". William Smith equated the river with the Amardus () or Mardus (Μάρδος) river of antiquity. The river is historically famous for its abundant fish, especially the Caspian trout, Salmo trutta caspius. ==Geography==

The Sefid-Rud has cut a water gap through the Alborz mountain range, the Manjil gap, capturing its two headwater tributaries, the Qizil Üzan and Shahrood rivers. It then widens the valley between the Talesh Hills and the main Alborz range. The gap provides a major route between Tehran and Gīlān Province with its Caspian lowlands. Dam and reservoir The Sefid-Rud was dammed in 1962 by the Shahbanu Farah Dam (later renamed Manjil Dam), which created a reservoir and allowed the irrigation of an additional . The hydroelectric component of the dam generates 87,000 kilowatts. ==History==

The river was known in antiquity as Mardos (; ) and Amardos (; ). David Rohl proposes identification of Sefid-Rud with the Biblical Pishon river. ==Gallery==

File:Sefidrood.jpg File:Sefidrood2.jpg ==Notes==