From Mountain Springs to Doorstep Canals

The old town’s water story begins beyond its lanes. UNESCO describes rivers and springs from the mountains northwest of the Lijiang plain feeding Heilong Pool, also called Black Dragon Pond. From there, waterways branch into a network of canals and channels. This sequence—mountain source, pool, distribution routes—helps explain how a settlement could organize itself around moving water rather than treating water as an edge feature.

The channels are also a way of reading the town at walking scale. In Dayan, main streets and smaller lanes meet canals; bridges connect their banks, while houses and public spaces face the water. That arrangement makes hydrology visible in the town plan. It does not mean that every channel has the same use or that the historic network alone tells us the present condition of each watercourse.

UNESCO’s property description links the water system to fire prevention, daily life and production. The channels therefore served more than one practical purpose. They helped supply a compact urban settlement, while their routes shaped where bridges, streets and buildings could meet. Water became part of the architecture because movement through the town had to negotiate it.