At that time, the national geographic survey was so large that it was by no means possible for one person to complete it. There are hundreds of maps drawn by provinces from different institutions. Emperor Kangxi personally presided over the official repair. From the forty-fourth year of Kangxi (1705) to the fifty-sixth year (17 17) and the fifty-eighth year (17 19), the whole map was completed. Kangxi Qin named it Panorama of the Forbidden City. At that time, this map was "the most refined and comprehensive map of Qing Dynasty" and "the most refined and comprehensive map of China since ancient times". This has nothing to do with Lao Zhou. Today, nearly13 of these maps were plundered by Eight-Nation Alliance and lost overseas in 1900. Several of them were taken to Taiwan Province Province by the Kuomintang and are now in the National Palace Museum in Taipei. The rest stayed in the mainland, and now they are in the National First Historical Archives in Beijing.