Thanks for this. Really impressive and cool!
A water-cathedral of a different sort, but very much a human-engineered water management system for regulating who got how much water when and for how long:
… and here’s what happens to large human settlements when the weather goes bad, water management is marginal anyway, and there’s no rain for decades:
Mesa Verde, Southern Colorado
Chaco Canyon, New Mexico
I bet plastic lawns were the least of these peoples’ worries.
