Semnan province is one of the historical cities in Iran. It is located in the southern mountain sides of Alborz with neighbors such as Mazandaran and Golestan provinces in north, Isfahan in south, Khorasan in east, and Tehran in west. The highlands of Semnan province are reduced from north to the south and lead to desert. The major cities are Semnan, Shahrood, Damghan, Garmsar, and Mahdishahr