Dunhuang Yardang national geological park is located in China's gansu province, 108 kilometers (67 miles) northwest of dunhuang city. It extends 25 kilometers (15 miles) from east to west and…
Dunhuang Yardang national geological park is located in China's gansu province, 108 kilometers (67 miles) northwest of dunhuang city. It extends 25 kilometers (15 miles) from east to west and…