Sareyn Sareyn Sareyn (, also Romanized as Sar‘eyn, Sara’eyn, Sar‘eīn, Sar ‘Eyn, and Sarein) is a city in and the capital of Sareyn County, in Ardabil Province, Iran. Sareyn is known for its hot springs. The population is about 8000, and increases to more than 20000 in the summer because of the many tourists who go there due to the charming climate. It stands 25 km from Ardabil and total area is 1.28 square km. At the 2006 census, its population was 4,478, in 1,135 families. The Sareyn springs are near an inactive volcano in mount Sabalan and its water contains
Mount Balatukan lava flows on the sides of the mountain are determined as Pleistocene. Fumarolic activity is present on the mountain, but its form displays extensive erosion. Balatukan is part of the Central Mindanao Arc of volcanoes. Its northernmost tip called Sipaka Point, which points to the northeast, is a cinder cone on a small peninsula called Mount Sipaka. The Global Volcanism Program lists the last activity of Balatukan as Holocene but "Uncertain". Philippine Institute of Volcanology and Seismology (Phivolcs) lists Balatukan as Inactive, even though the volcano displays fumarolic activity. Mount Balatukan Mount Balatukan is a massive compound stratovolcano in the