Krasnoyarsk is a city and the administrative center of Krasnoyarsk Krai, Russia, located on the Yenisei River. It is the third largest city in Siberia after Novosibirsk and Omsk, with a population of 1,035,528 as of the 2010 Census. Krasnoyarsk is an important junction of the Trans-Siberian Railway and one of Russia's largest producers of aluminum.The city is notable for its nature landscapes; author Anton Chekhov judged Krasnoyarsk to be the most beautiful city in Siberia.GeographyThe total area of the city, including suburbs and the river, is 348km2.The Yenisei River flows from west to east through the city. Due to the Krasnoyarsk hydroelectric dam 32km upstream, the Yenisei never freezes in winter and never exceeds in summer through the city. Near the city center, its elevation is 136m above sea level. There are several islands in the river, the largest of which are Tatyshev and Otdyha Isles, used mainly for recreation.To the south and west, Krasnoyarsk is surrounded by forested mountains averaging 410m in height above river level. The most prominent of them are Nikolayevskaya Sopka (notable for its ski jumping tracks), Karaulnaya Gora, and Chornaya Sopka, the latter being an extinct volcano. The gigantic rock cliffs of the Stolby Nature Reserve rise from the mountains of the southern bank of the Yenisei, the western hills form the Gremyachaya Griva crest extending westwards up to the Sobakina River, the north is generally plain, except for the Drokinskaya Sopka hill, with forests to the northwest and agricultural fields to the north and east.