Qanat

A qanāt (Persian: قنات‎‎/کاریز) is a gently sloping underground channel with a series of vertical access shafts, used to transport water from an aquifer under a hill. Qanāts create a reliable supply of water for human settlements and irrigation in hot, arid, and semi-arid climates. The qanat technology is known to have been developed in Iran by the Persian people sometime in the early 1st millennium BC, and spread from there slowly westward and eastward.

Qanat

A qanāt (Persian: قنات‎‎/کاریز) is a gently sloping underground channel with a series of vertical access shafts, used to transport water from an aquifer under a hill. Qanāts create a reliable supply of water for human settlements and irrigation in hot, arid, and semi-arid climates. The qanat technology is known to have been developed in Iran by the Persian people sometime in the early 1st millennium BC, and spread from there slowly westward and eastward.