TheSumbar (alsoSari-su,Sara-su andṢáríṣú) is a fast flowing river in southernTurkmenistan and northernIran. It a tributary of theAtrek. The nameSari-su meansyellow water in Turkic languages, but is applied to a number of other rivers as well. It used to be an area forCaspian tigers^[1] in Turkmenistan, until the last individual was killed in January 1954.

The Sumbar is 245 kilometres (152 mi) long and drains a basin of 8,300 square kilometres (3,200 sq mi). It arises in theKopet Dag mountains in Iran and flows into Turkmenistan. For a long stretch before the Sumbar runs into the Atrek, it is separated from the latter by a range of hills called the Marábeh.^[2] The Atrek becomes part of the Turkmenistan-Iran border where the Sumbar flows into it, at37°59′28″N55°16′29″E / 37.99111°N 55.27472°E /37.99111; 55.27472.

• Chandyr River
• Battle of Geok Tepe (1879)

This article includes content derived from the article"Сумбар" in theGreat Soviet Encyclopedia, 1969–1978.

• Rivers of Turkmenistan
• International rivers of Asia
• Rivers of Iran
• Caspian Sea basin
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