Danxia, the core of the Zhangye National Geopark, is known for the unusual colours of the rocks, which are smooth, sharp and several hundred meters tall.

They are the result of deposits of sandstone and other minerals that occurred over 24 million years.

https://video.nostr.build/678996da8820e4cf06ee3a37da0f26a31026d4acb1f15e064c11ce826ebb39c4.mp4