Alamut Geographic Region (Tati/, Alamut) is a region in Iran including western and eastern parts in the western edge of the Alborz (Elburz) range, between the dry and barren plain of Qazvin in the south and the densely forested slopes of the Mazandaran province in the north. Alamut is a Tat inhabited region. Starting from Qazvin toward Alamut, passing through the first range of hills, curvatures, forms, scars, wrinkles are significant themes in nature's composition of this area. Two big citadels of Ismailis, Lambsar and Alamut castles, are in this area. Hassan-i Sabbah and his Hashshashin controlled the area for many years.