Length 177 km Basin area 30,100 km² | Discharge 121 m³/s | |
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- left Kurshab River, Aravan Say River, Abshir Say River - right Jazy River, Kegart River, Kara-Unkur River - average 136 m/s (4,803 cu ft/s) - max 265 m/s (9,358 cu ft/s) - min 68.4 m/s (2,416 cu ft/s) | ||
The Kara Darya (Kyrgyz: Кара-Дарыя, Qara-Darıya/Kara-Daryýa, قارا-دارىيا; Uzbek: Qoradaryo, Қорадарё, قارەدەريا - literally black river) or Qaradaryo (Russian: Карадарья) is a tributary of the Syr Darya in Kyrgyzstan and eastern Uzbekistan. The river is formed by the confluence of Kara-Kulja River and Tar River. There are more than 200 known tributaries of Kara Darya; the largest are Jazy River, Kara Unkur River, Kegart River, Kurshab River, Abshir Sai River, and Aravan Sai River. Its length is 177 kilometres (110 mi), and watershed area 30,100 square kilometres (11,600 sq mi). The upper Kara Darya flows northwest across eastern Osh Province southwest of and parallel to the Fergana Range. It enters the Ferghana Valley and Uzbek territory a few miles west of Uzgen at Andijan Dam. The lower course is through the Fergana Valley, where it is used for irrigation. In the Fergana Valley its confluence with the Naryn River forms the Syr Darya, the second largest river of Central Asia. There are several dams on the river.