Qanat is an ancient system of underground tunnels that supply mountain water to dry lower places in the Middle East.
An example of qanat is a tunnel and well system that supplies water to the city Gonabad in Iran.
An ancient irrigation system consisting of a tunnel dug at a very slight upward gradient into rising ground so that water from deep within the earth runs out to the surface. Qanats were developed in Persia and later adopted throughout the Middle East and North Africa.
An ancient system of deep underground tunnels and wells built in the Middle East to channel water from a mountain to a dry lower region.