In pics: scenery of Yan'an, NW China's Shaanxi

Aerial photo shows the flowing clouds surrounding Shengli Mountain in Wuqi County of Yan'an, northwest China's Shaanxi Province, June 6, 2019. Wuqi County has carried out a development policy since 1998 that returned farmland to forest for ecological protection and sustainable development purposes. (Xinhua/Tao Ming)