Ghoomes was an Iranian province and a center for Isma‘ili activities from the 3rd century A.H. to the Mongol invasions under Hulegu. Considering the geographical position of this region and the existence of Gerd-Kuh fortress at a major center of highways near Damghan, the control of this province was of vital importance to Isma‘ili presence from the viewpoint of Hasan-e Sabbah and his successors.
Investigating the Isma‘ili activities in Ghoomes, this paper also discusses the geo-strategic importance of this province and the role it played in the establishment, stabilization and prominence of the Isma‘ili power in Iran.
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