Tag:canal=qanat

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Public-images-osm logo.svg canal = qanat
Osm element tag.svg
Description
a gently sloping underground waterway that transports water downhill from an aquifer or well Edit or translate this description.
Used on these elements
should not be used on nodesmay be used on waysshould not be used on areasuse on relations unspecified
Requires

waterway=canal

Useful combination
Wikidata
Status: unspecified

canal=qanat is used with waterway=canal and tunnel=yes to specify a qanat, also known as a faraj, khettara, kariz or kanez - a gently sloping underground channel used to transport water downhill from an aquifer or water well to the surface, commonly found in the Middle East and surrounding arid areas near hills or mountains.

A qanat is usually built with vertical ventilation shafts along it's course, which can be used to verify the route of the underground waterway.