Semnan province is in the north of the country, and its center is Semnan. The province of Semnan stretches along the Alborz mountain range and borders to Dasht-e Kavir desert in its southern parts. Counties of the province include Semnan, Aradan, Damghan, Shahrud, Mehdishahr, Meyami, Sorkheh, and Garmsar, and Shahmirzad county. The province is divided into two parts: a mountainous region, and the plains at the foot of the mountains. Neighbours are in the north Golestan, Mazandaran, at the west Tehran, Qom, at the South Isfahan and at the East Khorasan-e Razavi.