Just found at Asia News:
China has launched its official online mapping service, Map World, as Google Inc has yet to apply for a Web mapping license in the country.
The State Bureau of Surveying and Mapping (SBSM) officially unveiled the free online map service on Thursday (October 21). The service will provide "comprehensive geological data", said Xu Deming, director of the SBSM, at the launch ceremony.
The tool which can be found here unfortunately is in Chinese.. so I was not able to find this feature.. Maybe one of you have been more successful?