- Source: The Tigris River originates from Lake Hazar in the Taurus Mountains of southeastern Turkey.
- End: The Tigris River flows through Turkey, Syria, and Iraq before merging with the Euphrates River in southern Iraq. The combined rivers form the Shatt al-Arab, which empties into the Persian Gulf.
Euphrates River:
- Source: The Euphrates River begins in the Armenian Highlands of eastern Turkey, near the town of Keban.
- End: The Euphrates River travels through Turkey, Syria, and Iraq, where it joins the Tigris River to form the Shatt al-Arab. The Shatt al-Arab then flows into the Persian Gulf.