Photo taken on Dec. 12, 2013 shows the icicles formed at Hukou Waterfall, a section of the middle reaches of the Yellow River, in Yichuan County, northwest China's Shaanxi Province. It is the first year that the Yichuan Hukou Waterfall Scenic Area of Shaanxi is open to tourists in winter. (Xinhua/Ding Haitao) |