This mountain is 37 km. to the south of Gorgan and 6 km. to the southeast of the lower Shahkooh Village and its height is 3,813 meters. Gavkoshan is where the Sar Tangeh, Chahardeh, Toroudbar Rivers take their source. Its northern skirts are imminent with Gorgan township and its southern skirts are imminent with Shahrood and Damqan in Semnan province and have beautiful views.