Makushin Volcano rock exposures, at elevation. The pyroclastic flows deposited by the eruptions forming the Caldera have engulfed valleys in the eastern, northeastern, northern, and western valleys of the valley with depths up to 100 m. The northeast border of the volcano is also filled with volcanic lava, which is called the “Lava Ramp” spreading to an area of . A subsidiary cone formed is the Pakushin Cone), on the south. In the east and southeast part of the volcano hot springs and fumaroles have been created, at the summit and in valleys. A valley of the same name stretches to the
Under the Volcano 1984 it served as the basis of a film of the same name. In 1998 the Modern Library ranked "Under the Volcano" at number 11 on its list of the 100 best English-language novels of the 20th century. Lowry had already published one novel, "Ultramarine" (1933), by the time he was working on "Under the Volcano", and in 1936 wrote a short story called "Under the Volcano" containing the kernel of the future novel. That story was not published until the 1960s; passages of it are found also in the account of Sigbjorn Wilderness, found in "Dark as the Grave