A woman poses for a photographer on the bank of the Yenisei River, with the air temperature at about minus 25 degrees Celsius (minus 13 degrees Fahrenheit), outside Russia's Siberian city of Krasnoyarsk, on January 8, 2013. Yenisei, one of the largest river systems in the world, which rises in Mongolia and flows into the Arctic ocean, is the life-giving artery for the residents populating its banks. #

Men fish as a barge is transported on a shiplift at the Krasnoyarsk hydroelectric power station and dam, some 45 km (28 miles) south of Krasnoyarsk, on September 22, 2012. The lift is used to allow passage of ships past the dam. #

A woman walks past trees covered with heavy hoarfrost and snow on the bank of the Yenisei, with the temperature at about minus 26 degrees Celsius (minus 14.8 degrees Fahrenheit), outside Krasnoyarsk, on December 24, 2012. #

Valery Kokoulin, 47, dressed as Santa Claus, rings a bell on his self-made yacht to mark the ending of the sailboat season, as the air temperature dropped to minus 23 degrees of Celsius (minus 9.4 degrees Fahrenheit), on the Yenisei near Krasnoyarsk, on December 7, 2012. #

Two girls look at reproductions of work by Russian classical painter Vasily Surikov, displayed in ice frames, during the 1st International festival of snow and ice sculpture called "The Magical Ice of Siberia" on a bank of the Yenisei in Krasnoyarsk, on January 14, 2013. #

Alexei Vasyukov (left) and Mikhail Rukosuev, members of a team from the Russian Ural city of Perm, work on a snow sculpture based on a creation by Italian Renaissance artist Michelangelo during the 1st International festival of snow and ice sculptures in Krasnoyarsk, on January 17, 2013. #

The Novoyeniseisk wood processing plant, on the bank of the frozen Yenisei River in the town of Lesosibirsk, some 300 km (186 miles) north of Krasnoyarsk, on January 31, 2013. The plant exports timber to Europe, Northern Africa and Asia. #

Employees sort logs on a bank of the Yenisei at the Novoyeniseisk wood processing plant, on January 31, 2013. Open air work continues all year around regardless of temperatures which can drop to minus 45 degrees Celsius (minus 49 Fahrenheit). #

Dmitry Borisov, a recently demobilized Russian Northern Fleet sailor, after bathing in the Yenisei River as part of a photo shoot near Divnogorsk, on January 23, 2013. Borisov commissioned the photo session to mark his return to his native town after military service in the Navy. #

A rescuer is helped out of the water after descending to a depth of 12 meters (39 feet) with scuba gear to rescue a dummy during a training exercise in the ice-covered Yenisei river, south of Krasnoyarsk, on April 18, 2013. Members of the "Rescuer" state regional service were taking part in a weekly training session. #

Kite boarders and kite skiers compete during an amateur regional championship on the frozen Yenisei River in the taiga district, south of Krasnoyarsk, on March 31, 2013. #

Vladimir Samsonov, 59, a resident of Zheleznogorsk and a member of the Cryophil winter swimmers club, sunbathes as he sits on an ice floe on the Yenisei River in Krasnoyarsk, on April 26, 2013. #

Amateur shipbuilder Alexander Marchenko works on constructing a traditional 17th century-style wooden sailing ship, moored to a bank of the Yenisei River in the Khakassia region, 520 km (323 miles) south of Krasnoyarsk, on March 24, 2013. Marchenko, inexperienced in building or operating sailboats, has spent his free time on the ship for two years to achieve his childhood dream of building a boat. He plans to use the vessel as a Yenisei River tourist attraction, moored between the Sayano-Shushenskaya and the Maynskaya hydroelectric power stations. #

An off-road vehicle drives along a deep muddy road on the bank of the Yenisei, outside the village of Antsiferovo, on July 23, 2013. About 250 residents of Antsiferovo, mostly employees of the agrarian open joint-stock company Antsiferovovskoye Farm, rear about 500 cows for milk production. #

A driver pumps milk from a small boat into a storage tank on his truck, on the bank of the Yenisei, outside the village of Pogodayevo, on June 16, 2013. The milk was delivered by a farm worker in a home-made motorboat from the remote village of Antsiferovo. #

A patrol boat cruises along the Yenisei River, near the Shugur base in the Sayano-Shushensky nature reserve, 760 km (472 miles) south of Krasnoyarsk, on May 25, 2013. The expedition was organized by the reserve to allow its employees to survey the area's wildlife population and scout for possible ecotourism locations. The reserve is known as a habitat for a small population of snow leopards. #

Pyotr Alekseev, an employee of a storage area for old vessels deemed non-operational, checks the underside of an old Raketa hydrofoil boat, as he makes his daily rounds in Krasnoyarsk, on July 1, 2013. #

Men stand on logs that remained after a flood receded from the reservoir near the Sayano-Shushenskaya hydroelectric power station, about 530 km (330 miles) south of Krasnoyarsk, on May 24, 2013. Employees from the hydroelectric power station collect logs that float down the Yenisei River for subsequent recycling. #

Members of the "Angaryata" children folk dance group from the town of Kodinsk, rehearse the Huzul national dance on the banks of the Yenisei, before performing at the 21st inter-regional "Festival by the Marvelous Mountains" for children in Divnogorsk, on June 8, 2013. Hundreds of children, representing settlements and cities from all over Siberia, took part in the open air art and musical festival. #

A bride plays a piano for her groom in a park in Krasnoyarsk, on August 9, 2013. A group of young enthusiasts bought an old Soviet-made piano, repaired it, painted it white and placed it in a park for use by all visitors. #

The dam of the Sayano-Shushenskaya hydroelectric power station on the Yenisei River, on May 27, 2013. The Sayano-Shushenskaya hydroelectric power station is Russia's largest hydroelectric power station. #

Visitors look at a spillway at the Sayano-Shushenskaya hydro electric power station, on August 22, 2013. The spillway was constructed as an emergency outlet in case of a technical failure and as a high-water dump device for reservoir filled by the Yenisei River. #