Mazandaran Province About is a Caspian province in the north of Iran. Located on the southern coast of the Caspian Sea, it is bordered clockwise by the Golestan, Semnan, Tehran, Alborz, Qazvin, and Gilan provinces. Sari is the largest city and the capital of Mazandaran province.Mazandaran is one of the most densely populated provinces in Iran and has diverse natural resources, especially large reservoirs of oil and natural gas. The province's four largest counties are Sari, Babol, Amol and Qaemshahr. Founded as province in 1937, Mazandaran was declared the second modern province after neighbouring Gilan.
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