Karez / Qanat Tunnels (Kandahar region)

Karez (also spelled kārīz or kārēz in Afghanistan and Pakistan) are man-made subterranean water-supply systems—underground aqueducts or tunnels—designed to transport usable water from aquifers to the surface in arid regions. The technology originated in ancient Iran approximately 3,000 years ago and spread across large parts of Asia and North Africa; modern reference works name Afghanistan among the locations that retain some of the largest extant and functional qanat/karez systems. The supplied sources discuss the qanat/karez form, regional naming, historical examples elsewhere, and contemporary interest in conservation and climate-adaptive reuse of traditional karez methods. The research notes provided do not include any site-level coordinates, named karez in Kandahar, or historical reports tying specific Kandahar tunnels to supernatural phenomena. Sources focus on functional, historical, and environmental explanations for karez (hydrological engineering, cultural diffusion, and potential roles in heritage conservation and climate adaptation). A conservation/rejuvenation example and an interview recommending karez methods for climate issues are present for other regions in the archive material, but these do not document Kandahar-specific projects. Because the supplied corpus contains no accounts of hauntings, apparitions, entities, or paranormal theories, this entry records the absence of documented paranormal claims in the provided materials.