binggou danxia landform national park, beautiful rock formation in zhangye, gansu during sunset golden hour

1550 2550 adventure altitude autonomous beautiful binggou canyon china cliff county danxia desert exploration formation gansu geological golden hiking hill hour landform landforms landmark landscape leval level located meters mountain national natural nature outdoor palacestyle park pillar ridge rock sand sandstone scenery scenic sea stone sunan sunset tourism travel vacation valley view yugur zhangye