That is the Euphrates.
The Euphrates River
The River Evrotas
The Euphrates River
The Euphrates River
what mountain range is located east of the Tigris river in the southwestern part of Iran
The Tigris River
The Tigris river flows South-East.
Euphrates River
The headwaters of the Tigris River is in Turkey, and the Tigris River flows through Iraq to the Persian Gulf.
The Tigris-Euphrates confluence at Al-Qurnah forms the Shatt al-Arab River and that flows into the Persian Gulf.
It's
That is the Euphrates.