Kuyagan () is a rural locality (a selo) and the administrative center of Kuyagansky Selsoviet, Altaysky District, Altai Krai, Russia. The population was 779 as of 2013.Численность населения по муниципальным образованиям на 1 января 2011, 2012, 2013 гг. (в том числе по населённым пунктам) по данным текущего учёта There are 19 streets.
Geography Kuyagan is located on the Kuyagan River, 52 km southwest of Altayskoye (the district's administrative centre) by road. Kazanka is the nearest rural locality.Расстояние от Куягана до Алтайского
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