On Fri, 26 Jun 2020 at 14:47, Walker Bradley <walker.t.brad...@gmail.com> wrote:
> Some Qanats are over three thousand years old, and are certainly listed in > guidebooks. > Those may merit a historic=yes. Depends on the guidebook, to some extent. There is a Qanat system in Persia that is UNESCO listed ( > https://whc.unesco.org/en/list/1506/) > That certainly merits heritage tagging because it is listed by a heritage organization. > > “Modern” Qanats/Karez are still often hand dug, not with modern tunneling > equipment. The World Bank funded the refurbishment of many in Afghanistan, > usually these were done with traditional methods, and they are the main > source of water in many areas. > Modern ones are definitely not historic=yes. Not all of the old ones are historic=yes but are just everyday water supply of no special interest except to the thirsty. -- Paul
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