Water Disputes Between Iran and Afghanistan
Water Disputes Between Iran and Afghanistan The Helmand is one of Afghanistan’s most important rivers and has been approximately 1,300 km (800 miles), It is the longest river in Afghanistan. Originating from the Koh-e Bābā heights of the Hindu Kush (q.v.) mountain range (about 40 km west of Kabul), the Helmand receives five tributaries—Kajrud (Kudrud), Arḡandāb, Terin, Arḡastān, and Tarnak. Draining the entire southwestern portion of Afghanistan (approx. 100,000 sq. miles), the river moves southwest towards the Persian border, passing through the provinces of Wardak, Oruz-gān, Helmand, and Nimruz. South of Zaranj, the river flows northward, forming the Afghan-Persian border for 55 km before emptying into the Helmand (Sistān) marshlands. The river approaches the border area through the Mārgo Desert (Dašt-e Mārgo), and upon reaching it, splits into two separate waterways. The first, called Helmand (locally also called Daryā-ye Sistān, the Sistān River), flows through the Sistān p...