Eroded hills of sedimentary conglomerate and sandstone, Unesco World Heritage, Zhangye, China

natural area landscape mountain hill cloud erosion geological formation rock nature tourism tourist person numerous overview colorful relief national park stoneware building unesco's world heritage tourism facilty july zhangye national geopark naturalness area landform earth's crust sky meteorological phenomenon atmosphere ecotourism tourism journey leisure individual group enumeration shot colour environment protection environment management biodiversity management environment mineral matter matter (substance) habitat human settlement month of year gansu (province) china east asia far east asia continent nature natural areas ecosystem ecosystems landscapes panorama panoramas mountains hills hillside hillsides cloudy clouds cloudy sky erosions wear (geology) geological formations geologic form geologic forms rocks tourists human beings persons human being human presence human presences human humans some overviews global sight global sights full length colourful rudy colorfully colored reliefs national parks sensitive natural areas sandstone buildings world heritage site tourism facilties china danxia danxia landform of china