Qanat of Vazvan is located in the north of Vazvan city in Isfahan province which registered on Iran UNESCO World Heritage Sites under the name of The Persian Qanats. Vazvan is an old town located 2 kilometers north of Isfahan and in the middle of Meymeh Plain to the north with Meymeh to the south with Vandadeh village to the west with the village of Ezan and to the east with the neighboring villages of Maravand and Abyaneh.
Qanat of Vazvan goes back to Sassanid Era. This large Qanat had 3 strands in the past that branched out from a site above the old section. There are two underground crevices or water oven, called “Ker” by residents. the water is stored behind dams for 120 days (from September 10th to April 10th) and then directed to the large reservoirs that exist underground. After opening the holes considered for the dam, the saved water returns to the consumption cycle autonomously with the help of gravity.
The aqueduct, which has acted as an underground barrier to contain groundwater and prevent water loss and water management, can hold a large volume of groundwater. Qanat of Vazvan is nearly 35 kilometers long. The most important feature of Qanat of Vazvan is the possibility of closing the aqueduct outlet in winter and the high-water storage for farmers' use in spring.