Euphrates Turkey, in Syria and in Iraq. The same figures are given by Isaev and Mikhailova. The length of the Shatt al-Arab, which connects the Euphrates and the Tigris with the Persian Gulf, is given by various sources as . Both the Kara Su and the Murat Su rise northwest from Lake Van at elevations of and amsl, respectively. At the location of the Keban Dam, the two rivers, now combined into the Euphrates, have dropped to an elevation of amsl. From Keban to the Syrian–Turkish border, the river drops another over a distance of less than . Once the Euphrates
Euphrates Tunnel chariots and connected a major temple with the royal palace on the other shore of the river, it was supposedly lined with brick and waterproofed with asphalt. A description of the tunnel as being built and used by Queen Semiramis is given by Diodorus (fl. 50 BCE) in the "Bibliotheca Historica": Philostratus (d. 250 CE) also describes the tunnel's construction in the "Life of Apollonius of Tyana": Euphrates Tunnel The Euphrates Tunnel was allegedly a tunnel which was built under the Euphrates river to connect the two halves of the city of Babylon, in the old Mesopotamia. Archaeologists believe it