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Online historical map of high-frequency flood disaster areas in China (1736-1911)

Date: 2020-04-29  Editor: houxue2018    View counts: 6277   


Central point longitude
105.0
Central point latitude
37.5
Max zoom level
7
Min zoom level
4
Current zoom level
4

Map description

Historical map of high-frequency flood disaster areas in China (1736-1911)

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