Zarch Qanat in Yazd: A UNESCO Heritage Water System
Gravity-fed water, access stairs and the Yazd plain
Zarch Qanat carries groundwater underground by gravity across part of the Yazd plain. It is one of the eleven components of The Persian Qanat, inscribed on the World Heritage List in 2016. In Yazd, an access stair or a chamber gives a better sense of the system than looking for an exposed canal.
Contents
Zarch Qanat: Length and Historical Context
The 2016 ICOMOS evaluation describes an 80-kilometre system with three branches and a mother well up to 90 metres deep. It gives a date of 1200 to 1300 CE and notes both circular and square shafts. These figures describe the network, not the length or depth of a visitor route.
Understanding Underground Water Access
The main channel descends gently toward its outlet. The vertical shafts helped workers remove excavated earth and ventilate and maintain the tunnel. A payab serves a different purpose: its staircase lets people reach water below ground without climbing down a shaft.
A Photo Gallery of Zarch Qanat
In the photographs, compare the narrow water passage with the wider brick chambers. The steps and vaults belong to places where people could approach the water; the channel itself continues beyond those rooms.
Water Heritage in Yazd
The Yazd Water Museum gives an above-ground introduction to qanat construction and water-sharing. Zarch also served irrigation: an International Commission on Irrigation and Drainage profile describes how local managers allocate water shares to farmers.
Zarch Qanat Videos
The videos show the change from stairways and vaulted spaces to tighter passages near the channel.
Planning a Zarch Qanat Visit
Ask the local site office where the authorised entrance is and whether the visit uses stairs or narrow sections. If someone in your group cannot manage an underground route, consider the Water Museum for an introduction to the same system.
Stay on the route indicated by site staff. Shafts and unmarked openings serve the qanat itself and should not be treated as visitor entrances.
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