is an active stratovolcano in the Shikotsu-Tōya National Park, Hokkaido, Japan. It has erupted four times since 1900: in 1910 (which created Meiji-shinzan神沼克伊,小山悦郎 日本の火山を科学する　日本列島津々浦々、あなたの身近にある108の活火山とは？ ソフトバンククリエイティブ 2011. .), 1944–45 (which created Shōwa-shinzan), August 7, 1977, Last access October 28, 2010. and on March 31, 2000. To the north lies Lake Tōya. Mount Usu formed on the southern rim of the caldera containing the lake.

Mount Usu and Shōwa-shinzan are major tourist attractions in the Shikotsu-Tōya National Park. A rope-way on Mount Usu takes visitors to viewing platforms overlooking Shōwa-shinzan. The 1977 eruption is mentioned in passing in Alan Booth's travelogue, The Roads to Sata. The 2008 G8 Summit was held near Mount Usu at Lake Tōya.

See also List of volcanoes in Japan

References

External links

Usuzan—Japan Meteorological Agency

Usu Volcano—Geological Survey of Japan Toya-Usu UNESCO Global Geopark