The Tigris comes out of a spring next to Yildizhan, on the south side of Mount Hazarbaba, in the part of the Maden Mountains in the southeastern Taurus Mountains. After leaving here, it passes in front of the Mining district and takes the name of Maden Creek.
The bottom of the Tigris River, which flows through narrow and deep valleys towards the southeast and parallel to the eastern part of the lava shelf where the city of Diyarbakir is located, descends to 600 meters here.
The Tigris River, which heads east at a distance of 8 km to the south of Diyarbakir, descends from the slopes of the Taurus Mountains from the north. It combines Anbar, Kuruçay, Pamuk and Hazroçay with Batman and Yanarsu.
The floodplains Göksu and Savur Stream, which descend from the south and from the threshold of Mardin, join the Tigris. It passes through narrow gorges on the southern slopes of Mount Raman. After merging with Botan Water, it turns to the south.
The river is also very important in terms of forming the 40 km long Turkish-Syrian border from the Cizre Declivity to the Habur Suyu junction as it flows southwards. After merging with the Khabur Water, it enters the territory of Iraq.
The Tigris flows through a depression in the Iraqi soil and crosses narrow gorges. In Mosul, Big and Small are merging with Zap. After landing on the Mesopotamian plain, it is approaching the Euphrates 35 kilometers near Baghdad. Here it joins with the Piyale River coming from Iran. Then he is approaching the Euphrates again. Near Kurna, 64 km above Basra, it merges with the Euphrates, takes the name Shatt al-Arab and flows into the Persian Gulf.