The Murat River, also called Eastern Euphrates (Turkish: Murat Nehri, Kurdish: Çemê Miradê, Armenian: Արածանի, romanized: Aratsani), is a major source of the Euphrates River. The Ancient Greeks and Romans used to call the river Arsanias (Ancient Greek: Ἀρσανίας). It originates near Mount Ararat north of Lake Van, in Eastern Turkey, and flows westward for 722 km through mountainous terrain. Before the construction of the Keban Dam, the Murat River joined the Karasu River or Western Euphrates 10 km north of the dam site and 13 km north of the town of Keban.
