Mount Nipesotsu and Mount Upepesanke, lava domes located within the Nipesotsu-Maruyama volcanic group. Volcanoes referred to as Io by locals and tourists. "Io" means "sulphur" in Japanese. All photographs courtesy of and copyrighted by Mike Lyvers.
A crater at Nipesotsu-Upepesanke.
Solfatara at Nipesotsu-Upepesanke.
Nipesotsu-Upepesanke's namesake, sulphur.
Sources of Information:
Simkin, T., and Siebert, L., 1994, Volcanoes of the World: Geoscience Press, Tucson, Arizona, 349 p.