The Ontake Volcano, also known as Kiso-Ontake is situated in the south of the Hida Mountains (Northern Alps).
It is after the Mt. Fuji the second highest volcano in Japan and is one of the 100 famous Japanese mountains.
apan 1999, Ontake Volcano and Kiso-Observatory.
São Tomé and Príncipe 2017, Ontake volcano.
The stamp was issued in the series "Volcanoes".