A sacrificial ceremony is held at an ovoo in Bayan Obo mining district of Baotou, July 12. Ovoos are sacred stone heaps used as shrines or altars. They mainly serve as sites for religious ceremonies, but it is also thought they might bring a good harvest or good health to an individual. [Photo/people’s government of Bayan Obo mining district]

People pray while circling an ovoo, July 12. The ceremony was held to give thanks to nature, and to pray for favorable weather conditions and a good harvest. [Photo/people’s government of Bayan Obo mining district]

A sacrificial ceremony takes place at an ovoo in Bayan Obo mining district of Baotou, July 12. [Photo/people’s government of Bayan Obo mining district]