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
Makushin Volcano at depths ranging from and the second, about east of the summit under Unalaska Bay occurs at depths of . The volcano was climbed by English born American geographer George Davidson in 1867 who conducted some important geographical and geological research into the volcano area and the Makushin valley. Mount Makushin is located on the northern Unalaska Island, which is situated to the west of the town of Dutch Harbor. The Unalaska Bay, which is wide, separates the Dutch Harbor and Unalaska towns. The volcano is truncated, with a width of , forming the triangular northwest extension of the Unalaska