Figure 6: The short dotted line between the Jiangan River (Chien Kan Ho) and the Chaobai River (Chao Pei Ho) to the upper left of the map shows the location of the 1912 Lisuizhen break (Li Shu Chen Break) and the detour to the Chaobai River this break created. Reproduced with permission from the Archive of the Haihe Conservancy Commission housed at the Tianjin Municipal Archives, W0003-1-000210, page 455.