Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province. (Xinhua/Tao Ming)

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Aerial photo taken on Oct. 28, 2019 shows the sunset scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Aerial photo taken on Oct. 28, 2019 shows the scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Photo taken on Oct. 29, 2019 shows the scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Aerial photo taken on Oct. 28, 2019 shows the scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

Aerial photo taken on Oct. 28, 2019 shows the scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.

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.

Aerial photo taken on Oct. 29, 2019 shows the sunrise scenery at Guanshan pasture in Longxian County, Baoji City, northwest China's Shaanxi Province.