Northern Iran consists of the southern border of the Caspian Sea and the Alborz mountains. It includes the provinces of Gilan, Mazandaran, and Golestan. (Ancient kingdom of Hyrcania, medieval region of Tabaristan). The major provinces, Gilan and Mazandaran, are covered with dense forests, snow-covered mountains and impressive sea shores. The major cities are Rasht, Gorgan, Sâri, Bâbol, Amol, Qaem Shahr, Gonbad-e Kavus, Anzali, Lahijan, and Behshahr. Northern Iran has numerous villages, particularly Massulé, appreciated by travellers. Northern Iran was a trendy spot during the Pahlavi era, especially among foreign tourists. It was a luxurious place that provided all types of modern recreational facilities as well as tourism infrastructure. Today, it's mostly visited by domestic tourists. Language Iran is a very diverse country. "Dialect wise" there are different sub-languages and dialects of native speakers in the north of Iran as well the rest of the country. From the east to the west there are five major languages and hundreds of local dialects. If you talk to a native Iranian "north of Iran" are only the provinces on the south side of Caspian Sea which are Gilān, Māzandarān and Golestān, the last one has been separated from Māzandarān province at 1997. Here is the map of Iran with its provinces. Despite Iranian opinion of the north of Iran, Khorāsan at the east and the two Āzerbāijāns at the west side of Iran are geographically at the north of Iran, therefore, their languages have been included in this article. From the northeast, Khorāsan which is a large province laid out from the north to the middle south of Iran and is a neighbor to the Afghanistan border. The language from the north to the south of this province changes drastically, In the north of Khorāsan people speak “Ghaz Turkish” going from the north to the middle of the province, the dialect changes to some sort of Arabic which belonged to an old Iraqi Arabic language. This language has been mixed drastically with Persian language which makes it impossible for an Arab speaker to understand it. There are some Kurdish speakers in the north of khorāsan as well. The current languages of Khorāsan. From the north of Iran heading to the west, the next province is Golestān which has its own diversity in languages. until 1997 Golestān was a part of Māzandarān province. The main languages from the east to the west in this