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Photo taken on Oct. 4, 2018 shows a view of the Huoshizhai National Geologic (Forest) Park in Xiji County of Guyuan, northwest China's Ningxia Hui Autonomous Region. The park is famous for its Danxia landform, a unique type of geomorphology formed from red-colored sandstones and characterized by steep cliffs. (Xinhua/Wang Peng)