Shahrestān-e Soflá

Shahrestan-e Sofla lies in the mountainous Rudbar-e Shahrestan district, west of Alamut. The steep valleys of this part of the Alborz offered strong positions for fortresses. Nearby Lambsar stood above a deep gorge and was one of the strongholds held by the Nizari Ismailis, whose mountain castles resisted their enemies until the Mongol campaigns of the thirteenth century.