the southern Khorasan valley, which is the most important historical belt and the largest mountain belt of Birjand, was built on the orders of Amir Shaukat al-Molk in 1294 AH; this historic craft is now a beautiful tourist destination for Recreation and travel of tourists has become.
Dam Dam Dam of South Khorasan is constructed following the slopes located on the mountain and in the most suitable part of the valley below the sedimentary floors of the river bed. The length of the crown is 31 m, the crown width is 3 to 5 m and its height is 13 m and the wall thickness of the dam is 8 m in the base part and 3 to 5 m in the crown part.