Chagan(redirected from Chagan (nuclear test))
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an urban-type settlement in Semipalatinsk Oblast, Kazakh SSR. Chagan is under the jurisdiction of the Semipalatinsk City Soviet. It has a railroad station 80 km northwest of Semipalatinsk. Industrial enterprises include a keramzit shop and a branch of the fur factory of the Semipalatinsk Leather and Fur Association.
a river in Orenburg Oblast, RSFSR, and Ural’sk Oblast, Kazakh SSR; a right tributary of the Ural. The Chagan measures 264 km in length and drains an area of 7,530 sq km. It originates on the Obshchii Syrt Upland. The river is fed mainly by-snow.
The mean flow rate 40 km from the mouth is 7.7 cu m per sec. The Chagan usually freezes in November but sometimes as late as early January, and in the upper course it freezes through. The ice breaks up in late March or April.