Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery of a RV camp at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Photo: Xinhua)