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flag Scientists in China are preserving 20,000 ancient rock carvings in Helan Mountain, combining tourism with protection.

flag Researchers in China are working to preserve over 20,000 ancient rock carvings in Helan Mountain, dating back 10,000 to 3,000 years. flag The carvings depict natural images, human faces, animals, and ancient life scenes. flag Preservation efforts include field surveys, constructing flood-prevention dams, and protective fencing to balance tourism with protecting these national cultural heritage sites.

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