Vehicles move slowly in heavy snow, on a national highway in Altay, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2010. Altay was hit by heavy snowfall on Monday. The Local observatory issued blue warning signal of snowfall. [Xinhua]

A herdman herds cattle in heavy snow, in Xemirxek Township of Altay, northwest China's Xinjiang Uygur Autonomous Region, Dec. 27, 2010. Altay was hit by heavy snowfall on Monday. The Local observatory issued blue warning signal of snowfall. [Xinhua]