In north of Iran (The Old Persia) there is a green-blue state called as "Mazandaran" which like a seperated country.
It placed south of Caspian (Khazar) sea and in north of Alborz mountains and with middle green farms and forests.
some of famous cities of Mazandaran are Ramsar , Chalous , Amol , Babol , Sari , , Gorgan , Bandar Torkman.