Paired photographs compare a Yangtze gunboat at Chungking beside the same house in summer and winter. At the summer level, the vessel lies close to the building. At the winter level, it could not reach that position. Seasonal water levels changed where a gunboat could operate.
Notable Point · 2:54:26-2:54:48
Yangtze water levels and gunboat access
Summer and winter photographs at Chungking illustrate how river levels changed access to the bank.