Handpicked experience · Chengdu
Chengdu, China
An irrigation system still working after 2,270 years, built by splitting a river instead of damming it, and the mountain where Taoism acquired a priesthood.
An engineering work still doing its job after two millennia
A river divided instead of dammed, by a levee shaped like a mouth
A channel cut through rock by fire and cold water before iron tools
Temple courtyards under old trees on a damp ridge
Shaded forest trails, cooler than the plain
A private vehicle over four hours of mountain road
A private day from Chengdu to Mount Qingcheng and the Dujiangyan irrigation works: the waterworks that made Sichuan farmable, and the wooded lower trails of the mountain where Taoism was organised as a religion.
Dujiangyan is not a dam and never has been. It is an irrigation system begun around 256 BC under a governor named Li Bing, and it is still in daily use — which makes it roughly 2,270 years old and the oldest water management scheme on earth still doing the job it was built for.
The design is the remarkable part. Rather than blocking the Min River, Li Bing split it: a levee shaped like a fish's mouth divides the flow, sending the silt-heavy outer current downstream and the clearer inner current towards the plain. A spillway sheds floodwater sideways before it can reach the farmland, and the intake channel was cut clean through a mountain ridge.
That cut was made before iron tools were available for the work. The rock was heated with fire and doused with cold water until it cracked, and it took eight years. What resulted turned the Chengdu Plain from a flood-and-drought landscape into the region the Chinese have called the land of abundance ever since.
Mount Qingcheng is where, in 142 AD, a man named Zhang Daoling founded the Way of the Celestial Masters — the first organised Taoist church, with a priesthood, a liturgy and a structure, as distinct from the philosophy that had existed for centuries before.
The mountain is still covered in Taoist temples, and its name means green city wall: the forest is dense enough that from a distance the ridges read as ramparts. The lower trails are the accessible part, shaded and stepped, and pleasantly cool after the plain.
This is a long day with four hours of driving, and a private vehicle is what makes it comfortable rather than a rush.
Wear shoes for stepped forest trails, bring a layer — the mountain is cooler and often damp — and carry local notes for anything not covered by your booking.
Open it to pick a date and work out the price.
What the fare covers, and what to budget for separately.
The practical detail, and the answers people actually ask for.
No, and that is the point. It divides the river instead of blocking it, which is why it still functions after more than two millennia.
Begun around 256 BC and still in daily use — roughly 2,270 years, and the oldest water management scheme on earth still doing its original job.
A levee shaped like a fish's mouth splits the flow, sending silt-heavy water downstream and clearer water to the plain, while a spillway sheds floodwater sideways before it reaches farmland.
Before iron tools were available for it. The rock was heated with fire and doused with cold water until it cracked, which took eight years.
Sichuan could suddenly feed a very large population, which is a large part of why the province became militarily and economically decisive in Chinese history.
In 142 AD Zhang Daoling founded the Way of the Celestial Masters here — the first organised Taoist church, with a priesthood and liturgy rather than only a philosophy.
Green in the sense of unbroken. The tree cover is continuous enough that the outline of the range looks built rather than grown.