Iranian frigate Sabalan Iranian frigate Sabalan Sabalan (in Persian سبلان) is a British-made Vosper Mark V-class (or ) frigate in the Iranian Navy. Commissioned in June 1972 as part of a four-ship order, the "Sabalan" was originally named IIS "Rostam", after Rostam, a legendary hero in the Shahnameh, but was renamed after the Islamic revolution for Sabalan, the Iranian mountain. During the Iran–Iraq War, the warship became infamous for attacks against the crews of unarmed and often neutral tankers and other merchant ships. Before these attacks, "Sabalan"s captain would often board the ships and pretend to carry out a friendly inspection, sometimes even
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