Prayer flags fly on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Horses graze on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Cattles graze on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Vehicles park on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Prayer flags fly on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Sheep graze on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

A horse grazes on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)

Prayer flags fly on the grassland under blue sky and white clouds in Urat Middle Banner of Bayan Nur City, north China's Inner Mongolia Autonomous Region, June 27, 2016. (Xinhua/Zhi Maosheng)