Assistant machinist Alexei Simernin walks near a rotary dredge

Assistant machinist Alexei Simernin walks near a rotary dredge on the coal face of the Borodinsky opencast colliery.

Assistant machinist Alexei Simernin walks near a rotary dredge on the coal face of the Borodinsky opencast colliery, near the Siberian town of Borodino, some 152 km (94 miles) east of Krasnoyarsk, November 15, 2012. The Borodinsky colliery is the biggest opencast coal mine in Russia - 7 km (4 miles) long and 100 meters (328 feet) deep - was built from 1945 to 1949 by Gulag prisoners to produce about 20 million tonnes of coal a year now. Source: Reuters/Vostock-Photo

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